Reliability and Stability of Dream Recall Frequency


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Abstract

Although a large number of studies investigating factors affecting dream recall frequency (DRF) have been carried out, research investigating the reliability and stability of DRF is scarce. Dream diaries of 196 participants kept over at least 28 days were analyzed. The results of the present study indicate that a time period of 2 weeks was sufficient to obtain reliable measurements of interindividual differences in DRF. Despite the high day-to-day fluctuations of dream recall, the stability of this variable was very high. Studies that investigate the stability of DRF by means of other methodological approaches (e.g., questionnaire scales, laboratory awakenings) and over longer time periods (e.g., 1 year) should be carried out to complement the present findings.

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