Reliability and stability of lucid dream and nightmare frequency scales
Tadas Stumbrys, Daniel Erlacher, Michael Schredl
October 16, 2013 DOI: 10.11588/ijodr.2013.2.11137 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Reliability study |
|---|---|
| Sample size | 93 |
| Population | Sport students |
| Duration | 4-week interval between administrations |
| Topics | Dreaming Lucid dreaming |
| Key points | Eight-point scales for lucid dream and nightmare frequencies demonstrate high test-retest reliability (r = 0.89 and r = 0.75, respectively). |
Abstract
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.