Final exam (after midterm material) Flashcards
(26 cards)
keep Keep questions short and ask one question at a time. Longer questions may quickly become confusing, thus resulting in a misread of what you are asking.
be brief
pay attention to neutrality of words. Avoid leading questions
be objective
the amount of work or effort that a person or group is to perform without a time limit
workload
amount of mental effort necesarry to perform a task within a time limit
mental workload
- type of task
- number of task
- accuracy requirements
factors that contribute to workload
used to measure and asses workload directly in a system or simulated system. Four major types: primary task, secondary task, physiological, subjective
empirical techniques
used to predict workload demands early in the system development process
analytical techniques
evaluate the mental workload requirements of a task by directly examining performance of the user or the overall system.
Commonly used measure include reaction time, accuracy
primary task measures
based on logical of dual task performance. User is required to perform a secondary task in addition to a primary task. Provides a measure of the workload caused by particular combination of tasks
secondary task measures
requires users to maintain performance on the secondary task even if performance on the primary task suffers
loading task paradigm
requires users to maintain performance on primary task at the expense of the secondary task
subsidiary task performance
technique to measure arousal by measuring diameter of the pupil
PUPILLOMETRY
technique that requires users to judge which tasks have higher workload than other using a card sorting procedure . divided into 3 subcategories
time load
mental effort load
stress load
SWAT subjective workload assessment technique
this technique does not require the user to interact with the system. used to estimate workload at early stages of system development
analytical techniques
choices a rational person makes under ideal circumstances to solve problems and make decisions
normative
choices a typical person makes under typical circumstances
descriptive
evaluates all possible actions and selects the options to achieve a goal
forward chaining
starts with the goal and works backwards to the initial state in problem solving
backward chaining
identify the difference between the current state and the goal state and try to reduce it
means-end analysis
argument where a conclusion follows a set of premises
syllogism
objects are placed in categories based on how typical they seem to be of the category
conjunction error
what people should do do make the best possible decision
normative
how people really make decisoins, including how people overcome limitations and how they are biased by desicion making contexts
descriptive
choices are weighed by ___ which is how much a choices outcomes are worth to the decision maker
utility
