RECALL DESIGN. Recall Period. MSAS: past week MDASI: past 24 hours, past week EORTC: past week PROMIS: past week http://www.nihpromis.org/PROMIS%20The%20First%20Four%20years/PROMIS_The_First_Four_Years.doc Most PROMIS item banks utilize a 7-day recall period
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From: Stull DE, Leidy NK, Parasuraman B, Chassany O. Optimal recall periods for patient-reported outcomes: challenges and potential solutions. Curr Med Res Opin. 2009 Apr;25(4):929-42.
“We speculate that patients with a chronic illness…have a good idea of their typical pain and fatigue levels. Given the difficulty of recalling many previous days, as in the case of the 28-day reporting period, patients may refer to these beliefs, which provide a reasonably good estimate of average symptom levels. However, when asked to construct a rating to represent the past 7 days, patients may attempt to retrieve some memories from the week, which are subject to the distortion of the cognitive heuristics mentioned earlier (e.g., peak effect), thereby decreasing accuracy.”