Glossary
Searchable terminology from accessibility, web standards, and related fields.
10 results found in usability testing.
- Galvanic Skin Response (GSR, Electrodermal Activity, EDA, Skin Conductance)
- A physiological measurement technique that detects changes in the electrical conductance of the skin caused by sweat gland activity. Because sweat glands are controlled by the sympathetic nervous syst…
- Heat Map (Heatmap, Attention Map, Gaze Map)
- A data visualization technique that uses colour intensity to represent the distribution and density of user attention or interaction on a page or interface. In eye tracking research, heat maps aggrega…
- Likert Scale (Likert-Type Scale)
- A psychometric rating scale commonly used in surveys and usability studies where respondents indicate their level of agreement or satisfaction on a symmetric scale, typically with 5 or 7 points rangin…
- Response Bias (Acquiescence Bias, Yea-Saying Bias)
- A systematic tendency for research participants to respond in a particular way regardless of the actual content of the question, distorting data collection and analysis. In accessibility research invo…
- Retrospective Protocol (Retrospective Think Aloud, Retrospective Verbal Protocol, Post-Task Protocol)
- A usability evaluation method in which participants complete tasks first and then describe their thought processes, decisions, and experiences immediately afterwards, rather than verbalising concurren…
- Single Ease Question (SEQ)
- A post-task usability metric consisting of a single 7-point rating scale question asking users how easy or difficult a task was to complete. The SEQ is widely used in usability studies because it is q…
- Task Completion Time (TCT, Time on Task)
- A key usability metric measuring the time a user takes to complete a specific task from start to finish. In accessibility research, task completion time is one of the primary measures for comparing th…
- Think Aloud (Think-Aloud Protocol, Verbal Protocol, Concurrent Think Aloud)
- A research methodology where participants verbalize their thoughts while performing a task, providing insight into cognitive processes that would otherwise be unobservable. In accessibility research, …
- Usability Study (Usability Test, Usability Evaluation)
- A research method that evaluates how easily and effectively users can interact with a product, system, or prototype by observing real users performing tasks. Usability studies measure factors such as …
- Video Coding (Behavioural Video Coding, Video Data Coding)
- A systematic research method in which trained analysts review video recordings to identify, label, and categorise specific behaviours, actions, emotions, or events. In accessibility and usability rese…