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Clinical research often relies on retrospective recall of symptom levels, but the information contained in these ratings is not well understood. The “peak-and-end rule” suggests that the most intense (peak) and final (end) moments of an experience disproportionately influence retrospective judgments, which may bias self-reports of somatic symptoms. This study examined the extent to which peak and...
This study evaluated the ability of end-of-day (EOD) ratings to accurately reflect momentary (EMA) ratings on 10 widely used pain and fatigue items. Rheumatology patients (n = 105) completed ≥5 randomly scheduled EMA assessments of each item per day as well as EOD ratings. Correlations were high between EOD and EMA ratings of the 5 pain items (r = .90 to .92) and somewhat lower for the 5 fatigue/energy...
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