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Flashcards in Group Cognition Deck (13)
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Group function

Hill (1982)

Evidence of process loss and process gain

Process gain- through process of group discussion- get right answer

Process loss- acting crowds hinders ability to get right answer

Groups performed at accuracy of second best member


Why comparing groups is hard

Task type

Intellective (involves reasoning) vs judgement task

Well defined (clear success metric) vs ill defined

Required insight

Required background knowledge

Provoke strong intuitions or emotions


Why comparing groups is hard

Standards of comparison

Consider where people are individually on performance

Synergy- collaboration group performance is better than best individual


Why comparing groups is hard

Coordination methods

Averaging- just collect ppts individual answers and no discussion

Iterative- everyone gives answers, sees answers of other people and get to change

Pick best individual answer-> dictator method- group decides who they think will be the best person to answer


Why comparing groups is hard

Individual differences

Do they have different sources of info- access to cues

Do they differ in ability

In other capacities


Gigone and Hastie


Lens model

Never really see the world just given cues that tell us how to see it/ construct representation of it

Various cues we can pay attention to, come to different judgements by cues- combined in group judgement

Revision- what someone else says changes own judgement



Independent estimates- not influenced by other judgements

Uncorrelated errors- more judgements can get better estimate of true value and can get rid of noise

Correlated errors due to: limited info, individual bias, group conformity

No systematic biases

No coordination between group members


Group think

Polarisation in group decision making

Group become obsessed in single view answer

Overconfident that it’s right

Blindness to errors

Due to conformity


Social account of reason

Interactionist account- reason evolved to produce and evaluate arguments

Primary reason to create arguments is to persuade other people


Wason task in small groups

Normally 80% fail

In groups 80% get right answer

Truth wins scenario- someone gets right answer and manages to persuade everyone in the group


How groups reason

Exchange of arguments

Groups typically co constructed a structure of arguments qualitatively more sophisticated than that generated by most people - justify beliefs

Show synergy


Collective intelligence

G- inspired by idea of general intelligence

C- collective intelligence

Does the general intelligence (individual) after the collective intelligence (group)


Predictors of group intelligence

Average social sensitivity

Amount of communication

Distribution of communication

Coordination problem of group work often overweight the intellectual intelligence

Higher social perceptiveness (RME)= better group discussion