| Abstract: | Factor analyzed a 33-item questionnaire concerning typical self-report sleep habits and behavior. After rotation of the principal-components solution, 5 matching factors were isolated in 2 samples of 92 and 180 volunteer male college students. These factors were tentatively interpreted as (a) Voluntary Control of Sleep, (b) Sleep-Onset Difficulty, (c) Difficulty Maintaining Sleep, (d) Recall of Dreaming, and (e) Cognitive Control of Sleep Mentation. Parametric data on estimated factor scores for 640 college students are also reported. While it is not necessary for the dimensions of sleep efficiency to correlate with physiological and EEG data, some data suggest that they may do so successfully. Implications of these subjective dimensions of sleep quality for the understanding of the functions of sleep and the treatment of sleep disorders are briefly discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
