Glossary

Search results

Within-Subjects Study(also: Within-subject study, Repeated-measures design)

An experimental design in which every participant experiences every condition being compared, so each person acts as their own control. Within-subjects studies increase statistical power with smaller samples and remove between-person variance, but must counterbalance order (e.g.…

Wizard of Oz(also: WOz, Wizard of Oz Study, Wizard of Oz Method)

A research and prototyping technique in which a human operator (the "wizard") secretly performs functions that participants believe are being handled by the system. This allows researchers to study user reactions to capabilities that have not yet been fully implemented. In…

Wizard of Oz(also: WoZ, Wizard of Oz Testing, Wizard of Oz Prototyping)

A research and design method in which a human operator (the "wizard") secretly controls or simulates system responses that participants believe are automated. In accessibility research, Wizard of Oz studies allow researchers to test interaction concepts for assistive…

Wizard of Oz Study(also: WOZ Study, Wizard of Oz Method)

A research method in which participants interact with what they believe is an automated system, but which is actually operated in whole or in part by a human "wizard" hidden from view. The method is used to evaluate the usability and desirability of interfaces that do not yet…

Wizard-of-Oz(also: WOZ, Wizard of Oz Method, WOZ Study)

A research methodology where participants interact with what they believe is an autonomous system, but a human "wizard" is secretly operating it behind the scenes. Named after the 1939 film, this technique is commonly used in accessibility and HCI research to test interface…

Wizard-of-Oz Prototype(also: WOz Prototype, WOz Method, Wizard of Oz Study)

A research and design method where a human operator secretly simulates the behaviour of an interactive system that has not yet been built, allowing participants to experience and evaluate the concept as if the technology were fully functional. Widely used in accessibility and…

Wizard-of-Oz Study(also: WoZ Study, Wizard of Oz Protocol)

A research method in which participants interact with a system they believe is autonomous, but which is actually being partially or fully operated by a human researcher (the "wizard") behind the scenes. In accessibility research, Wizard-of-Oz studies are used to test the…

Wizard-of-Oz Study(also: Wizard of Oz, WoZ Study, Wizard-of-Oz Method)

A Wizard-of-Oz study is a research method in human-computer interaction where participants interact with a system they believe is autonomous, but which is actually being partially or fully operated by a human researcher (the "wizard") behind the scenes. This technique is…

Wizard-of-Oz study(also: WoZ study, Wizard of Oz method)

A research methodology in which participants interact with a system they believe is automated, but which is actually operated partially or fully by a hidden human operator (the "wizard"). This approach allows researchers to evaluate user experience, interface design, and…

iGroup Presence Questionnaire(also: IPQ)

A standardized questionnaire for measuring the sense of presence experienced in virtual environments, developed by the iGroup consortium. The IPQ assesses three sub-scales: spatial presence (feeling physically present in the virtual world), involvement (attention focused on the…

jsPsych

An open-source JavaScript framework for building behavioural and HCI experiments that run in a web browser. jsPsych provides reusable plugins for common trial types (survey questions, Likert scales, multiple-choice, video playback, audio stimuli, best-worst scaling,…