How do we know what participants thought when we presented our stimuli?
#ProcessTracing can reveal what people saw (e.g., eye-tracking), consciously thought (e.g., concurrent think-aloud), etc.
Combining those two methods revealed:
(1) thinking aloud didn't impact gaze or word count
(2) retrospective think-aloud left out thoughts that were mentioned concurrently
(3) retrospective think-aloud introduced thoughts unmentioned concurrently
