109 | Think-aloud Protocol |
A method where participants verbalize what they are doing and thinking as they complete a task
- Think-aloud Protocol is among the most common evaluative methods in the usability community, revealing aspects of an interface that delight, confuse, or frustrate.
- It asks people to articulate what they are doing, thinking, or feeling as they complete a set of tasks that align with their realistic day-to-day goals.
- Concurrent think-aloud is most common, asking the participant to work through tasks while articulating what he or she is doing, thinking, and feeling.
- Retrospective think-aloud asks participants to complete a task in silence and then comment on their processes as they watch a recorded replay of their experience. This can provide additional insight into participant reasoning, intentions, and strategy.
- The method can be used on low- or high-fidelity prototypes, physical artifacts that require assembly, devices to be synchronized, or customized products.
See alsoDesirability Testing • Prototyping • Usability Testing
In a think-aloud protocol, participants verbalize anything that they think, feel, do, or look at while processing a prototype or interface to complete tasks.
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