European Portuguese Adaptation of Glasgow Content of Thoughts Inventory (GCTI): Psychometric Characterization in Higher Education Students. Issue 1 (2nd January 2018)

• Record Type: Journal Article
• Authors: Marques, Daniel R.; Meia-Via, Mariana S.; Espie, Colin A.; da Silva, Carlos F.; Allen Gomes, Ana
• Is Part Of: Behavioral medicine. Volume 44:Issue 1(2018)
• Page Start: 11
• Page End: 18
• Publication Date: 2018-01-02
• Subjects: sleep -- insomnia -- GCTI -- psychometric study -- validation; Medicine and psychology -- Periodicals; Medicine, Psychosomatic -- Periodicals; Stress (Physiology) -- Periodicals; Stress (Psychology) -- Periodicals; 616.98
• DOI: 10.1080/08964289.2016.1180279
• Languages: English
• ISSNs: 0896-4289

Abstract

ABSTRACT: Persistent cognitive activity is an important factor in disturbing sleep-onset both during bedtime and when attempting to get back to sleep after nocturnal awakenings. One of the most specific self-report measures designed to assess this feature is the Glasgow Content of Thoughts Inventory (GCTI). In this study, we investigated the preliminary psychometric properties of GCTI in a large sample of higher education European Portuguese students (N = 2995). Our results suggest that there is evidence of good internal consistency (α = 0.93) and validity indicators. Moreover, we found an interpretable factorial structure comprising 5 correlated factors that needs to be confirmed in future studies. The European Portuguese version of the GCTI appears to be a reliable and valid instrument for measurement of sleep-onset disturbing cognitions.