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Effects Of Timeframe On The Recall Reliability Of Me/Cfs Symptoms, Meredyth Evans

College of Science and Health Theses and Dissertations

This study served as an investigation of the effects of symptom stability, timeframe length, and momentary symptom severity on the recall reliability of symptoms experienced by individuals with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). ME/CFS symptoms were assessed at four recall timeframes (right now, the past week, the past month, and the past six months) and at two assessment points. Analyses revealed that test-retest reliability was significantly stronger for recall of post-exertlonal malaise (PEM), headaches, and memory problems, when these symptoms were perceived to be stable over time rather than variable. It was also revealed that the optimal timeframe for variable …