In contrast, initial levels of depressive symptoms in the spring of the senior year of high school predicted increased subjective sleep problems and actigraphy -
measured sleep onset latency and sleep start variability in the fall of the first year of college.
Strong correlations were found between the repeated
sleep measures for nocturnal
sleep duration (r =.82), daytime
sleep duration (r =.89), number of night wakings (r =.88), duration of nocturnal wakefulness (r =.95), nocturnal
sleep -
onset time (r =.95), and settling time (r =.94).
The
Sleep Impairment Index is a 7 - item scale that yields a quantitative index of insomnia severity; it was used as a collateral measure of treatment outcome.6 Ratings on a 5 - point scale were obtained on the perceived severity of sleep onset, sleep maintenance, and early morning awakening problems; interference with daytime functioning; noticeability of impairment caused by the sleep problem; distress / concern caused by the sleep problem; and satisfaction with current sleep pat
Sleep Impairment Index is a 7 - item scale that yields a quantitative index of insomnia severity; it was used as a collateral
measure of treatment outcome.6 Ratings on a 5 - point scale were obtained on the perceived severity of
sleep onset, sleep maintenance, and early morning awakening problems; interference with daytime functioning; noticeability of impairment caused by the sleep problem; distress / concern caused by the sleep problem; and satisfaction with current sleep pat
sleep onset,
sleep maintenance, and early morning awakening problems; interference with daytime functioning; noticeability of impairment caused by the sleep problem; distress / concern caused by the sleep problem; and satisfaction with current sleep pat
sleep maintenance, and early morning awakening problems; interference with daytime functioning; noticeability of impairment caused by the
sleep problem; distress / concern caused by the sleep problem; and satisfaction with current sleep pat
sleep problem; distress / concern caused by the
sleep problem; and satisfaction with current sleep pat
sleep problem; and satisfaction with current
sleep pat
sleep pattern.