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While the efficacy of cognitive behavior therapy for insomnia (CBT-I) has been established with well-controlled studies, its effectiveness in typical clinical practice remains to be determined. We examined the effect of CBT-I combined with usual medication on night-time sleep, daytime functioning, and the discontinuation of hypnotic drugs. The study recruited 103 patients with insomnia, who were divided...
The purpose of this study was to examine whether the Insomnia Severity Index (ISI) and Pittsburgh Sleep Quality Index (PSQI) are valid outcome measures for Cognitive Behavioral Therapy for Insomnia (CBT-I). Specifically, we tested whether the factorial parameters of the ISI and the PSQI could remain invariant against CBT-I, which is a prerequisite to using their change scores as an unbiased measure...
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