retrospective

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ret·ro·spec·tive

(ret'rō-spek'tiv),
Relating to retrospection.

retrospective

/ret·ro·spec·tive/ (-spek´tiv) looking backward, or directed toward the past.

retrospective

adjective Referring to the capture of clinical trial data ex post facto—i.e., recalled from a subject’s/patient’s memory rather than being recorded in real time.

Retrospective capture is important in patient-reported outcomes because of "recall bias" and other errors demonstrated in psychological research that have compared contemporaneous self-reported assessments as well as those that rely on long-term memory.

retrospective

said of data already collected or of events that have already occurred. Hence a retrospective study is a study of past events, in contradistinction to a prospective study.