L3: Group Decision-Making and Brainstorming Flashcards

1
Q

How can insights in creativity be applied in practice?

A
  • important to select and assign creative individuals to teams for managing creativity
  • manage team creativity through additive or disjunctive strategies
  • high task interdependence = prioritize mean member creativity
    low task interdependence = prioritize one creative member
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Additive model

A

Predicts team creativity with the sum of member creativity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Disjunctive model

A

Creativity of the team’s most creative member. It is not at odds that the team creative product is an outcome of teamwork, but creativity is driven by the team’s most creative member

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How can the importance of creativity in tasks influence creativity in the workplace?

A

Teams with a clear focus on creative performance can prioritize higher levels of creativity that more creative members can provide (more disjunctive). The most creative members are more likely to express their ideas and get more attention. But less creativity means that anyone can contribute (additive) as less creative solutions will be accepted.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How can idea implementation influence creativity?

A

Implementation is about putting the best ideas into practice and ideation about as many ideas as possible. Ideation fits better with the additive model, while the disjunctive in implementation tasks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How is there a research gap in creativity?

A

There is a need for an integrative framework between additive and disjunctive models to understand the individual-to-team relationship. This study looks at moderators such as task interdependence, creativity requirements, idea implementation and general contexts like team size and longevity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why does individual creativity apply to both team creativity and innovation research?

A
  • team creativity is the generation of outcomes that are novel and useful who share responsibility of those outcomes
  • but team innovation is seen as a broader concept of ideation and implementation
  • both usage and the ideas are important for the team to establish
  • shift needs to made from as many creative ideas as possible to one best idea to solve the problem
  • if focus is on ideation then all contributions from members are embraced, but if focussed on how to implement then attention is on highly creative members
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Steiner’s individual-to-team performance models

A
  • additive model
  • disjunctive model
  • compensatory model predicts team performance from the average contribution (how they complement each other)
  • discretionary model is combining individual inputs using other models-> focusses on individual motives which makes it less likely to predict team creativity
  • conjunctive model focusses on the least capable member but has been rejected
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Hypotheses of this study

A
  1. average individual creativity has a positive relationship with team creativity
  2. highest individual creativity has a positive relationship with team creativity
  3. task interdependence moderates the relationship between average individual creativity and team creativity (esp when interdependence is high)
  4. task interdependence moderates the relationship between highest individual creativity and team creativity (esp when interdependence is low)
  5. average creativity is more positively associated with team creativity when team tasks display lower levels of creativity requirements
  6. Highest individual creativity is more positively associated with team creativity when team tasks display higher levels of creativity requirements
  7. Average individual creativity is less positively associated with team creativity when team tasks require the implementation of creative ideas.
  8. Highest individual creativity is more positively associated with team creativity when team tasks require the implementation of creative ideas.
  9. Team size negatively influences the relationship between average individual and team creativity
  10. Team size positively moderates the relationship between highest individual and team creativity
  11. Average individual creativity has a positive relationship with team creativity with higher team longevity
  12. Highest individual creativity has a positive relationship with team creativity with higher team longevity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How can task interdependence influence creativity?

A

Highly interdependent tasks involve the need to draw on and combine contributions m which can be combined into an integrate product. This dilutes the influences of any individual influence. But low task interdependence makes the most creative individual more salient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How can team size influence team creativity?

A

Team size indicates the scope of resources but also growing complexity in communication and coordination. So it might be harder to use the additive model, while the disjunctive model fits better with large teams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How can team longevity influence creativity?

A

Teams need to understand how to coordinate and integrate each other’s ideas, while disjunctive logic is being able to recognize the most creative member

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Method?

A

Studies were identified on team creativity and innovation then studies were selected with measures of team creativity and individual creativity with enough stats info. Most of the studies focussed on ideation alone. Task interdependence was often not measured in studies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Results

A

Both additive and disjunctive models were supported. Additive model was more predictive in teams with high task interdependence, while disjunction more effective in condition of high interdependence. Negative moderation effect of creativity in additive model (low creativity requirement means stronger relationship). No support for hypothesis 6. Additive model more predictive in ideation-only tasks. Hypothesis 8 not supported, as disjunctive model is as effective as additive in ideation-only tasks. No support for moderating role of team size. Longevity predicts relationship btw average individual creativity and team creativity, along with the disjunctive model. Team creativity negatively moderates the additive model. Disjunctive model more effective when team creativity was rated internally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Why were some hypotheses not supported?

A

The superior value of the contributions of the most creative members may still be recognized and valued for lower creativity requirements. Creative members may still contribute a lot in ideation-only tasks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Epistemic motivation

A

The willingness to expend effort to achieve a thorough, rich and accurate understanding of the world

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Social motivation

A

The individual preference for outcome distributions between oneself and other group members. Can be pro-self (concerned with own outcomes only) or prosocial (joint outcomes and fairness)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How can group decision-making be extended?

A
  1. need to consider how people can and will choose a shallow/heuristic view than deep and deliberate processing
  2. need to consider cooperative and competitive incentives
  3. epistemic motivation interacts with social motivation to predict the quality of group judgment
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Interdependence theory

A

social motivation plays a crucial role in group decision-making by influencing the type of information processed at both the individual and group levels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Motivated information processing in groups model

A
  1. social motivation and epistemic motivation are seen as distinct factors
  2. epistemic motivation influences the extent to which new info is searched and generated
  3. info is biased based on proself or prosocial motivation
  4. higher levels of epistemic motivation lead to more thorough and deliberate processing of info
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

How is epistemic motivation related to information processing?

A

Heuristic processing is more likely with low levels of epistemic motivation while deep and deliberate processing is more likely with high levels of epistemic motivation. It depends on sufficiency of info available to the decision maker. If state of knowledge is insufficient the more motivated they are to engage in systematic processing. So inversely related to need for non-specific closure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the difference between preference driven and information-driven group interactions?

A

Preference-driven groups: members look at preferences and form group judgment by adding these preferences and can reach consensus through normative influence
Information driven groups: communication and integration of relevant info and systematic info processing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is group centeredness?

A

the behavioral syndrome of group members to pressure themselves and others to opinion uniformity,
toward stability of knowledge and perspective, and to enhance the value and validity of group features and
characteristics. Lower need for closure is related to lower group centeredness, more tolerant of opinion deviates and less susceptible to normative influences

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

How does epistemic motivation influence creativity?

A

Epistemic motivation generally enhances creativity by promoting cognitive flexibility and openness to new ideas. However, stress, time pressure, and a fear of making mistakes can suppress creative thinking. While high epistemic motivation fosters individual creativity, excessive task relevance and self-censorship can inhibit idea generation. In groups, high epistemic motivation supports creativity by reducing conformity pressure, encouraging divergent thinking, and fostering participative decision-making. But, time constraints and group-centeredness can hinder this process.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
How does shared vs unshared information influence group decision making?
In hidden-profile situations (making a choice out of options), groups make better decisions when they share and process unshared information rather than relying only on shared information, which often leads to suboptimal choices. But, research shows that group members tend to discuss shared information more. Decision quality improves when groups engage in deep, systematic information processing, which is influenced by epistemic motivation. Factors like time pressure reduce epistemic motivation and lead to heuristic, preference-driven decision-making, whereas criticality norms and counterfactual mindsets enhance systematic processing and lead to better decisions.
26
What are the implications of epistemic motivation?
1. higher levels of epistemic motivation lead to more systematic and deliberate search for and processing of information 2. higher epistemic motivation leads to lower levels of group centeredness, reduce intolerance of deviance, pressure to conformity, longing for autocratic, hierarchical decision-making 3. higher epistemic motivation leads to more divergent thinking, and stimulate creative ideation 4. can be mediated by group centeredness
27
Interdependence theory
This argues that people transform an objective interdependence structure into a subjective interdependence situation which forms the basis for more action. Some may have the same mix of cooperative and competitive incentives, but some emphasize the other more.
28
What are some motives that can influence group behaviour?
Proself motivation is made up of competitive and individualistic goals, while prosocial motivation compromises cooperative and altruistic goals. These are related to differences in social value orientation, affiliation and agreeableness. People with prosocial motives have a stronger tendency to trust others, value harmony and make decisions to foster goals. But proself motivation= distrust others, value power, achievement, less disturbed by dissenting points of view
29
How can advocacy bias influence decision-making?
Group members often argue for their own position, sharing only information that supports their view. This bias is stronger in individuals with a proself motivation (self-interest) than in those with a prosocial motivation (group interest).
30
How can lying and deception influence decision-making?
Proself-motivated individuals are more likely to misrepresent information to maximize personal gains. Prosocial motivation leads to more accurate and transparent information exchange. Deception increases when stakes are high or when individuals believe others lack information.
31
How can spinning influence group decision-making?
People develop psychological ownership over their ideas and resist opposing views. Proself-motivated individuals exaggerate the strengths of their preferences and downplay counterevidence. Prosocially motivated groups may be less defensive and more open to counterarguments.
32
How can self-censorship and mutual enhancement influence decision-making?
Prosocial motivation can lead to self-censorship to maintain group harmony, reducing the sharing of dissenting information. Shared information is viewed as more valid and competent, leading to mutual enhancement (reinforcing group consensus). This can bias group decisions toward shared rather than unshared information, even when the latter is more relevant.
33
How is epistemic motivation related to minority dissent?
Minority dissent increases epistemic motivation by reducing confidence in initial preferences, encouraging deeper cognitive processing. Exposure to differing opinions leads to more critical thinking and the exploration of alternative ideas.
34
How can motivation influence group performance?
Proself Motivation (self-interest, competition) fosters independent thinking and a higher likelihood of taking a minority position. Prosocial Motivation (cooperation, harmony) promotes group cohesion and constructive group processes. Proself motivation benefits divergent tasks (idea generation, creativity), while prosocial motivation is advantageous for convergent tasks (decision-making, planning).
35
How is conflict related to creativity?
Moderate levels of disagreement and conflict stimulate creativity and innovation. Competition in brainstorming tasks enhances idea generation, as individuals strive to outperform each other. Upward comparisons and a desire to "win" can improve long-term creative performance in groups.
36
How does individualism/collectivism influence creativity?
Individualistic groups tend to generate more original but less feasible ideas, whereas collectivist groups focus on feasibility and consensus. Divergent thinking flourishes in competitive, individualistic environments, while structured decision-making benefits from a collectivist approach.
37
What are limits of proself motivation?
While proself motivation fosters creativity, it can lead to disregarding or derogating others' ideas, which may harm group dynamics. Attention to others’ contributions enhances group creativity by allowing for idea-building and refinement. Expectations of negative evaluation can reduce creativity, especially in individuals with high social anxiety.
38
What is the model of social motivation on individual-level and group level?
1. Prosocial/proself individuals seek, encode and retrieve cooperative info more 2. In proself groups this leads to advocacy, lying, deception and spinning of info. Proself orientation leads to independent thought, resulting in higher group creativity 3. the more members that have a proself motivation, the less likely it is that the group focusses on consensus and integration of perspectives, tolerates dissent etc 4. Groups with more prosocially motivated members are better at reaching agreements to integrate all members-> high-quality decisions
39
What is a summary of the MIP-G model?
Prosocial group members are more likely than proself members to share information that benefits group goals and collective functioning. They tend to disseminate information accurately, avoiding personal bias, deception, or strategic withholding. These tendencies become stronger when epistemic motivation is high, as individuals process information more deliberately and systematically. High epistemic motivation reduces group-centered thinking, decreasing the preference for autocratic leadership while encouraging participative decision-making.
40
What happens when individuals have low epistemic motivation and proself orientation?
- group members ae unwilling to invest cognitive effort and motivated by personal interests - can be unmotivated, free ride or engage in social loafing, unwilling to understand others' positions, leading to stalemates and indecision
41
What happens when individuals have high epistemic motivation and proself orientation?
- motivated by selfish goals, willing to exert effort to gain a better understanding of the situation - likely to argue, engage in advocacy, lying, deception and spinning of info - group members do not shy away from taking a minority position and independent in thinking
42
What happens when individuals have low epistemic motivation and prosocial orientation?
- value their own and group members' outcomes - unwilling to invest effort, but willing to maintain group harmony - group centredness may emerge, with pressure on deviants - interactions are influenced by pooling of preferences than info
43
What happens when individuals have low epistemic motivation and prosocial orientation?
- have prosocial goals and willing to invest effort - self-censorship is reduced, preferences for accuracy and harmony drive the group to solving the problem - group members pay attention to other's ideas, build on them and reach high levels of creativity
44
How can decision urgency impact group judgement?
With high decision urgency, it is difficult and undesirable to have a deliberate search for and processing of info. There is a trade off between effort and accuracy. Directive leadership is the optimal strategy to decision making. Prosocial motivation can help rather than hinder reaching group judgements and quality decisions. High task cohesive groups performed better in high urgency situations than low cohesive groups. Group members also tend to lower epistemic motivation with time pressure.
45
How can member input indispensability influence group judgement?
This is high when groups have hidden profile tasks, when they negotiate integrative agreements, when new ideas and problem solutions help the group move toward judgements and decisions. When indispensability is low, group members are less critical in processing info, so they rely on well-learned routines, own judgements and decisions. High levels of epistemic motivation are not needed to reach good judgements and decisions, can be detrimental even. Best combination is prosocial motives with low epistemic motivation
46
What are the effects of group composition?
Groups with at least one highly epistemically motivated member tend to engage in deeper information processing, improving decision quality. However, in larger groups, these individuals may struggle to influence the majority, especially if they have low status. Leaders can play a crucial role in enhancing epistemic motivation by encouraging discussion Research suggests that groups often shift toward a proself orientation over time, even if they start with more prosocial members. This shift occurs because prosocial individuals tend to adopt a noncooperative stance when faced with proself counterparts, while proself individuals remain noncooperative regardless of their counterparts’ motives. Competitive information thus gains more prominence in group discussions. A consistent prosocial minority may counteract this tendency by modeling cooperative behavior, influencing others to become more prosocial over time.
47
What is the role of affect?
Negative affect can motivates individuals through thorough processing of information and greater openness to new info than positive affect. They also engage in more group-level info processing in groups and reach higher quality decisions. When manipulated into a positive mood-> less likely to engage in info processing. Negative affect is linked to proself motivation and competitive behaviour.
48
How do motives differ?
Proself motivation can result in independent thinking, focus on the self but can manifest in competition and explicit dismissal of other positions. There are different causes of these motives, as culturally scripted mental sets can influence this, but usually results in more automatic and habituated behaviour. Some conditions can cause both of them like political orientation and situations like emerging threats can reduce epistemic motivation which can increase prosocial motivation to coordinate and care for each other
49
What are routines?
Habitual patterns of behaviour, which are functional in providing a mechanism to anticipate other members' actions. This allows for more efficiency in transforming inputs into outputs. But this is seen as mindless and important to be able to adapt.
50
Role structure adaptation
Defined as reactive and nonscripted adjustments to a team's system of member roles that contribute to team effectiveness. Reactive is a change in team activity in response to something, nonscripted is that the focus is not on reactions to problems. Adjustment is activity or behaviour. It is important but teams must integrate info to make a series of decisions over a span of time
51
Hypotheses
- role structure is positively associated with team decision-making performance after a change in task context - member cognitive ability is positively associated with role structure adaption, team decision-making performance, the relationship between cognitive ability and decision-making performance is mediated by role structure adaptation - member achievement is positively associated with role structure adaptation and team decision-making - member dependability is negatively associated with role structure adaptation and decision-making performance - member openness to experience is positively associated with role structure adaptation and decision-making performance
52
What factors can influence role structure adaptation?
- cognitive ability which is the differences between individuals in their capacity to process info and learn - conscientiousness includes an achievement component related to feelings of competence, striving and being self-disciplined along with a dependability component related to orderliness, dutifulness and deliberation-> worse decisions with adaptation - openness to experience involves imaginativeness, curiosity, originality and broadmindedness-> self-monitoring in novel situations - member cognitive ability increases postchange team performance due to developing effective systems of activity + learning from experiences - positive relationship between member achievement and team performance with unexpected change ( due to working harder and drive) - member dependability is linked to a high need for order and careful consideration-> less likely to abandon old patterns
53
Method
Participants worked on a team version of team interactive decision exercise, in which they have to make decisions about the state of objects. Then a critical communications link was removed in the middle of the study to examine postchange performance
54
What are the variables in the study?
- postchange decision-making performance - role structure adaptation - rated measure of adaptation - team cognitive ability and personality (additive form was used)
55
What did the results find?
- significant positive correlations between role structure adaptation and postchange decision-making performance - relationship btw cognitive ability and role structure adaptation was significant - team achievement, dependability and openness was related to better decision-making - all mediations had support
56
Brainstorming
Which is using their brain to storm a problem, which can be applied to problems with many potential solutions that are not clearly right or wrong. The principles: deferment of judgement and quantity breeds quality (criticism can kill creativity). To produce a large quantity, then brainstorming is an additive and maximizing task. Quality is defined by originality and feasability
57
Are groups more productive than individuals?
Nominal groups (no interaction between group members and worked individually) were compared to normal groups. But the nominal groups outperformed the interactive groups and were found to be twice as productive
58
What causes this productive loss?
- motivation losses such as free riding and perceived expertness in creativity, downward matching through being as productive as the least productive group member - coordination losses through evaluation apprehension (but found to be less important) and having high interaction anxiousness which meant that interactive groups performed less well (they have more evaluation apprehension) - production blocking could play a role which is due to taking turns in speaking then members have to wait for their turn which could result in forgetting ideas
59
How was production blocking tested?
compared different group settings to assess the impact of production blocking on idea generation. In a normal interactive group and a standard nominal group, participants worked together without interference. In three additional conditions, individuals worked separately but used a traffic light system to control speaking turns. When the system enforced production blocking (conditions 3 and 4), groups were less productive than those without blocking (nominal groups and groups instructed to ignore the system). Overhearing others’ ideas (condition 4) did not significantly influence productivity.
60
Why does this effect occur?
Due to cognitive interference. The ideas cannot be immediately express after being generated which leads to the forgetting of some ideas and interferes with the ability to generate new ones
61
Electronic brain system
This is typing and seeing other's ideas on the screen to eliminate production blocking. This also stimulates ideas as in bigger groups, they were more productive than nominal groups (groups of 9 and more). Positive effects were found in smaller groups when instructed to remember those ideas
62
Why are seeing other's ideas stimulating?
New ideas result from new combinations of existing knowledge as available knowledge should first be activated in memory to retrieve ideas (which should be semantically related). When shown stimulation ideas then they were more productive, shorter response latencies with similar ideas
63
Why do people have the illusion that group sessions are effective means of generating ideas?
- group members have the opportunity to compare performance with others so more satisfied - overestimating performance in a group session as they take credit for ideas that was suggested by others - experience more difficulties when coming up with something new alone but in groups can sit back and listen
64
How are the quality of ideas evaluated?
Based on originality and feasibility. Creativity is related to whether ideas are novel and useful. The quality of a brainstorming session is measured by the number of good ideas.
65
How are the best ideas selected?
This depends on the quality of ideas generated and the effectiveness of the selection process so the degree to which the best ideas are chosen. Nominal groups will have generated more good ideas but interactive groups may be better at selecting their ideas
66
What has research found about the quality of ideas and effectiveness of selection in groups?
Groups generated less ideas than nominal groups, they were less original but more feasible than of nominal group. The selected ideas did not have higher originality and feasibility. Better ideas were not chosen even if available
67
Why is selection effectiveness so low?
- originality and feasibility are negatively related, so feasibility is focussed on when choosing ideas (originality less important) - when original ideas were chosen this led to less satisfaction
68
What is important for group members to be creative?
- some argue it is non-conformity but it depends on the degree to which group members engage in independent thinking - competitive negotiation stimulated more creativity-> more willing to stand out - groups more creative after a change in membership - when individualistic values activated (how you are unique), this led to more creativity
69
What was found about multilevel group creativity?
Individual-level creativity was measured and on other positive behaviours that contribute positively to group functioning like providing feedback, communicating effectively and coordinating group activities. Individual level creativity was related to group level activity only when group members showed effective group behaviours
70
Why do groups rather than individual make decisions?
- to reach consensus and ensure everyone's opinion is heard-> more willing to accept a decision when they had a say - groups have more resources to draw on than individuals-> information integration function
71
Social decision scheme theory
Includes individual preferences, group composition, social decision schemes and group response. How group compositions relate to group decisions is based on the social decision scheme ( a decision rule). Preference is favouring one option or another while group composition is how many people in a group prefer each alternative. The number of alternatives increases with larger groups. To decide on outcomes: majority wins which is that a preference is always chosen when a majority of group members prefer it, proportionality is the probability that an alternative is chosen based on the proportion of group members and truth when such as when an alternative represents the truth when at least one member prefers it. Related to disjunctive tasks
72
What are more complex SDSs?
Specifying what happens in each cases like majority wins, proportionality otherwise
73
How to investigate group preferences?
- measure or manipulate group composition, observe group decisions and assess the SDS - compare individual preferences with group decisions
74
Important findings about group decisions?
- majorities can win when wrong due to normative pressure-> public compliance - but the majority wins yields accurate decisions when group members are motivated to find the best alternative but often this does not occur or vote independently - leniency bias is that anti-conviction is more influential than pro-conviction->more juries acquit than convict
75
Process of sharing information
When group members pool their info they arrive at a better and more informed choice. Gaining all information is important as it can lead to process gains as the group would perform better than members could perform alone
76
Hidden profile
This is when the correct solution is hidden from group members and can only be detected when group members exchange their unshared information
77
How did studies look into hidden profiles?
Participants either had shared info (A) or hidden profiles. In the unshared /consensus condition, the only info provided was negative (favour candidiate B) and the unshared conflict condition then 2 groups were led to like B and 2 others for C.This condition might have discussed more extensively and found that A was the correct option. The full information condition confirmed that A was the best choice. All results confirmed this, except that A was not considered for the final condition.
78
Why was the unshared information not discussed?
Because of chance, as the probability that a piece of info is mentioned during discussion is positively related to the number of group members that hold that info. Group discussion also show a sampling bias as they focus on what is shared than unshared. This tends to be: exaggerated in larger groups, the bias depends on information load (less likely to be revealed). Even it is mentioned it is less likely to be picked up by the group . Unshared info is repeated less often than shared info-> less weight
79
Why is unshared information given less weight?
- shared information can be validated by other group members other than the one that mentioned it-> more credible - it is difficult to change an initial preference, as new info is evaluated in a biased way - common knowledge effect is the idea that shared info has a bigger impact on group choice than unshared info - advocacy bias is group members' tendency to defend initial preference during group discussion
80
How does SDS explain common-knowledge effect?
Arrow 1 refers to the fact that shared information has more impact on individual preferences; arrow 2 to preference pooling (e.g., majority wins); arrow 3 to the sampling bias in favor of shared information; arrow 4 to biased evaluation; and arrow 5 to advocacy.
81
How can initial preference diversity influence discussion biases?
Hidden profiles were created and C was the superior candidate. Participants read info which made her less attractive. They were assigned to various conditions. The percentage of correct responses increased when one group member initially favoured the correct candidate-> due to discussing fully
82
How can decision-framing influence discussion biases?
Framing decisional task as a problem to be solved rather than a decision to be made such as when being asked to solve a murder to logical reasoning rather than judge, led to the correct identification of the suspect
83
How can leadership influence discussion bias?
Leaders usually take the role of information managers during group discussion. If leaders are trained to encourage group member participation during discussion then this stimulates information exchange through repeating all info.
84
How can expert roles influence discussion biases?
If group members know at the start aoout who knows what if they have mutually recognized areas of expertise. This means that having a specific area of expertise can increase the probability for unshared info in that area, if they know which unique unshared info then more likely to become shared. If seen as an expert than seen as more credible even if others cannot validate it
85
Why does group think occur?
Certain situations lead to excessive concurrence-seeking as groups aim to maintain group harmony and consensus than adequately assessing the situation. Antecedent conditions: sense of superiority (espirit de corps), structural faults (high group member homogeneity, no leader impartiality and insulation of group from outsiders) and high stress due to external and internal stressors. So high group cohesion and high levels of stress mean that consensus is valued
86
What are the symptoms of groupthink?
Illusion of invulnerability, belief in inherent morality of group, collective rationalizations (explains away counter-evidence), stereotyping of outsiders, self-censorship (not expressing true opinions), mind-guards who correct dissenter, pressure on deviants and the illusion that group members should all agree with the decision. No contingency plans, alternatives are not re-examined and processing is poor and selective
87
What have case studies found?
Public statements were less complex and more positive about the speaker's own group in groupthink situations than non-groupthink situations. No differences between groupthink and non-group think situations in stereotyping. Challengers: issue of O-rings was known and discussed but NASA management did not consider the evidence carefully due to issues with delays. Strong relations between structual faults and concurrence seeking, with groupthink and defective decision-making. High cohesion or stressors did not affect concurrence-seeking
88
What has experimental evidence found?
- high group cohesion did not lead to groupthink - leader impartiality found to predict groupthink - directive leadership associated with more self-censorship, mind-guarding and dissent - combination of high cohesion, external threats an structural faults which causes groupthink - better to be seen as a heuristic model rather than a validated theory
89
What is the difference between preference and information driven groups?
Preference driven: frequent exchanges of preferences but not much discussion and elaboration of info, so groups will adopt the majority's position. Info processing is biased and directed at confirmation of initial preferences Information driven: groups take more time to arrive at a decision and the discussion is less biased. Less appropriate in high emergency situations but more accurate. More effortful and only used when motivated and uncertain about accuracy of choices but important
90
What conditions lead groups to prefer an info-driven strategy?
When there is preference diversity, so there is no consensus, so certainty will be lower. Info-driven strategies are used to find an alternative. Framing a decision as a problem to be solved and having mutually recognized areas of expertise-> unique unshared info
91
Eureka tasks
These are tasks in which a group could solve it if there is at least one smart member who could do it. If someone finds a solution it would be recognized as correct by others
92
Demonstrability
requires that group members agree on a formal system to solve the problem, that enough information is present to solve it, that incorrect members recognize the correct solution when it is proposed, and that correct members are willing and able to share their answer with the others. The more demonstrable a task is, the fewer correct group members are needed to solve it as a group. Truth wins more important for highly demonstrable tasks and truth-supported when less demonstrable
93
When can group be expected to use a truth wins SDS?
Depending on the demonstrability of a task, which are on a continuum of judgemental to intellective tasks. Judgemental tasks are evaluative, behavioural or aesthetic judgements for which there does not exist a demonstrably correct answer-> achievement of consensus. Intellective tasks are problems or decisions for there exists a demonstrably correct answer within a verbal or mathematical conceptual system
94
When would the truth wins social decision scheme be used?
(1) the group agrees on a verbal or mathematical system that can be used to solve the problem (2) there is enough information to solve the problem (3) group members who cannot solve the problem have sufficient knowledge to recognize a correct solution when it is proposed (4) the correct group member is able and willing to share the solution with the other group members in a way that they understand.
95
What is truth supported wins?
When the correct member needs at least one supporter. More groups are expected to get the correct solution than with truth-supported wins
96
How was this investigated?
Individuals were asked to solve this three times, then individually, and in a group and then individually. Groups outperformed the individuals, and those in a group had learned and outperformed those. For intellective problems groups use a truth wins SDS
97
How does truth wins and truth supported differ per task?
With one solver most of the groups were correct for math tasks, and way less for verbal analogies-> truth supported approach
98
Collective induction
Producing a general rule from available evidence such as generating a hypotheses in guessing a card
99
How was collective induction tested?
There is a correct hypothesis, plausible hypotheses (can be correct in principle) and non-plausible hypotheses (cannot be correct based on previous trials). If groups less often propose a non-plausible hypothesis then better at recognizing and correcting errors. This is a disjunctive task as potential performance is determined by best member. Groupd performed better when allowed to play more card, and given sufficient time
100
Letters to numbers task
Letters A-J represents a number from 0-9 and the correct number needs to be found for each letter. They propose mapping and receive feedback which continues untul solved. Nominal groups distinguished between the ability of members based on the average number of trails to get coding. The groups needed less trials to get the letters right than the best-> show process gains as the task is complex
101
Types of cognitive biases
Base rate fallacy is ignoring base rate information when making probability estimates Conjunction error is when the estimated probability of one answer is greater than another even if equally likely
102
Are groups more likely to spot these errors as suggested?
They tested this using the cab problem and found that when using lower witness accuracy, the groups were closer to the normative solution, but at higher levels of witness accuracy then groups showed a stronger base rate fallacy than individuals-> group polarization and majority wins Groups made more conjunction errors due to exacerbation at individual levels -> error wins
103
What factors can influence whether groups fall prey to these errors and biases?
- group size - proportion of individuals that make a certain error or bias - SDS used by the group - type of error - availability of info (sometimes info is taken into account or neglected)-> attractiveness resulted in leniency bias
104
How are groups information processors?
- groups have more info than one individual - groups have shared and unshared info within them - using this group knowledge requires proper info sharing - even if no individual member knows the answer the group can find it by working together-> process gain
105
What is the parable of the blind men and the elephant?
the parable implies that one's subjective experience can be true, but that such experience is inherently limited by its failure to account for other truths or a totality of truth.
106
What has been found about hidden profile tasks?
- difficulty in exchanging unshared info and spend more time discussing shared info - discount unique info that is different from their own and argue against it to defend own preference (advocacy) These effects are more likely to occur when groups are large and info load is high
107
How do groups process info?
1. search 2. encode 3. store 4. retrieve shared mental models (shared understanding of tasks and collective goals) and transactive memory (know who knows what in their team) can facilitate info processing
108
Epistemic motivation
Willingness to expend effort to achieve a thorough, rich and accurate understanding of the world.
109
Social motivation
Preference for outcome distributions between oneself and other group members. Pro-self or pro-social.
110
How does info processing take place on an individual and group level?
Individual-Level Factors: - Social Motivation (Proself vs. Prosocial): Determines whether individuals act in self-interest or prioritize group success. - Epistemic Motivation (Low–High): Affects how deeply individuals analyze information. - Bias & Depth of Information Processing: Shape the way individuals contribute to discussions. Group-Level Factors: - Information Dissemination & Integration: The process of sharing and combining knowledge. - Member Input Indispensability: The necessity of each member's contribution. - Decision Urgency: The pressure to make a decision quickly. - Quality of Group Judgment & Decision: The final outcome, influenced by information processing and integration. Groups make better decisions when members process and share information effectively. Prosocial motivation and high epistemic motivation lead to deeper processing and better outcomes. Decision urgency and undervaluing contributions can lower decision quality.
111
What are the effects of social motivation?
Social Motivation: - proself motivation leads to either individualistic (valuing independence) or competitive orientations (disregarding others ideas) Effects on Information Processing: This increases bias in information exchange, leading to advocacy, deception, and spinning. It reduces consensus-seeking and the cooperative integration of different perspectives. However, it may enhance flexibility of thought, fostering divergent thinking and creative ideas (depending on the orientation)
112
How do group behaviours change depending on epistemic motivation and orientation?
Low epistemic motivation and proself: vetoing, indecision and ignoring ideas for e.g. social loafing Low epistemic motivation and prosocial: pressure on deviants, lazy compromising for e.g. harmony High epistemic motivation and proself: arguing, counteracting, independence for e.g. advocacy, spinning High epistemic motivation and prosocial: information pooling and attention to others’ ideas for e.g. effective problem solving
113
Brainstorming
Idea generation is separated from idea evaluation. Idea is to generate as many ideas as possible, first ones tend to be the most conventional. It is an additive and maximizing task. Group performance is the sum of individual ideas
114
How can there be process gains in teams?
- cognitive stimulation - group interaction can help one come up with new ideas
115
How can there be process losses in teams?
- motivation loss: free-riding, downward matching, not as prominent as people like to brainstorm - coordination loss: evaluation apprehension, production blocking as turn-taking can create cognitive interference, group size (as it becomes larger)
116
Why does brainstorming feel easier in groups?
- Social comparison: Without a comparison point, you feel more insecure. * Overestimating performance in groups: Claiming credit for ideas that weren’t your own. * Avoiding difficulties: Easier in groups when you’re stuck to sit back and listen to others and don’t have to acknowledge that you’re stuck.
117
Different types of ideas?
- Bad ideas are low on originality and feasibility - Conventional ideas are high on feasibility but low on originality - crazy ideas are very original but low on feasibility - good ideas are both feasible and original
118
Additive model
- Sum the creative potential of all members → team creativity. * The prediction: Average individual creativity predicts team creativity.
119
Disjunctive model
* One or a few creative members → team creativity. * The prediction: Highest individual creativity predicts team creativity.
120
How can task interdependence influence team creativity?
High interdependence is when members draw on and combine each other's contributions, sharing and synthesizing info is central. Low interdependence is that members do not need to rely on each other. Average individual creativity has a stronger relationship with team creativity when task interdependence is high. Highest individual creativity is stronger for team creativity when interdependence is low
121
How can team longevity influence team creativity?
With more longevity, team members have shared understandings and common perspectives. Both additive and disjunctive models need teams to coordinate and integrate ideas
122
Why do groups make decisions?
- consensus building - information integration as groups have more resources and info
123
What types of inputs are there?
- member preferences - member info - task of group is to combine preferences and info
124
What is the model of group decision making?
It begins with individual inclinations toward specific alternatives, which form the basis of group composition. Within the group, the number of people favoring each alternative is taken into account. The social decision scheme then acts as a rule that determines how these individual preferences are integrated into a collective choice. Then, the group response is the final decision, influenced by both the composition of preferences and the specific decision-making rule applied. Changes in environment can influence all of these factors
125
What are the factors that can influence role structure adaptation?
- member cognitive ability (capacity of processing info to learn/unlearn with change) - conscientiousness: achievement and dependability (negatively related) - member openness to experience (related to creativity, broad mindedness, willingness to try new things)
126
What are the different types of tasks?
- eureka tasks is when someone finds a solution and everyone knows it is the correct one. Mean group performance is determined by having one smart member. Groups do better than individuals - collective induction tasks is inducing a general rule based on evidence, groups do better as there is more info and there are process gains
127
How can team size influence creativity?
This is the scope of resources like expertise ad personnel but also more complexity in team communication and coordination. Larger teams are more likely to experience conflict and divide into subgroups, which makes integrating inputs difficult. Smaller teams can experience conflict and divide into subgroups which makes it easier to attend to individual inputs. Average individual creativity more predictive in smaller teams but was unsupported
128
When do group members engage in independent thinking?
when groups are competitive, group members are individualistic and group membership has changed. This increases divergent thinking rather than conformity to group norms, and have effective group processes like communicating and coordinating
129
What are some solutions to overcome biases towards shared info?
Initial preference diversity can help promote the discussion of unique information above groups were members all have the same wrong preference Framing the task as a problem to be solved rather than a decision to be made – people discuss the problem more fully Having effective leaders/devil’s advocates who can stimulate the exchange and discussion of unshared information Creating expert roles (a sort of transactive memory system), where people know what type of unshared information other members should have, making them respect it more and making it easier for these members to dare to share their unique information Improving epistemic motivation?
130
Types of biases/judgement making errors?
Availability heuristic (Overreliance on highly salient information. Groups are less susceptible) Sunk Cost effect (Oversensitivity to previously made costs. Groups are more susceptible to this type of bias.) Conjunction fallacy/error (Estimating the likelihood of a joint event as larger than the likelihood of a single event. Findings on whether groups are more susceptible than individuals are mixed. Base rate fallacy (A tendency to ignore base-rate information when judgements. Findings on whether groups are more susceptible than individuals are mixed) Positive framing (The same information that is more positively framed [10% will dies, vs. 90% will survive] is preferred. Findings on whether groups are more susceptible than individuals are mixed.) Fundamental attribution error (under-use of situational information when making attributions. Groups are generally less susceptible) Hindsight bias (estimating the probability of an unlikely event larger after you know it has happened. Groups tend to be less susceptible.)