Final exam (after midterm material) Flashcards
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