Bern Open Repository and Information System (University of Bern) · 2013 · 60 citations · 19 references
Social SciencesBehavioral SciencesPsychologyIndividual DifferencesPsychometricsScale DevelopmentInternal ConsistencyPsychological AssessmentPsychological TestingReliabilitySleep AssessmentTest ReliabilityClinical Measurement ReliabilityPsychometric ReliabilityQuestionnaire ReliabilitySelf-report ScalesSubjective Sleep MeasurementTest Score Reliability
Lucid dream and nightmare frequencies vary greatly between individuals and to assess these differences reliable instruments are needed. The present study aimed to examine the reliability of eight-point scales for measuring lucid dream and nightmare frequencies. The scales were administered twice (with a four-week interval) to 93 sport students. A re-test reliability for the lucid dream frequency was found r=.89 (p<.001) and for the nightmare frequency r=.75 (p<.001). Both eight-point scales appear to be reliable measures for assessing individual differences in lucid dream and nightmare frequencies.
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Lucid Dreaming Verified by Volitional Communication during Rem Sleep
Stephen P. La Berge, Lynn Nagel, William C. Dement et al. · Perceptual and Motor Skills · 1981 · 237 citations