A data-gatheringmethod used in a variety of research areas in which a person or a group of people are asked to verbalise their thought processes as they do a specific task which are then recorded on paper, audio or video for further analysis. Commonly abbreviated as TAP.
This term is commonly stylised both in title case and in lower case and both with or without a hyphen between think and aloud.
English Wiktionary. Available under CC-BY-SA license.