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Title: European Portuguese Adaptation of Glasgow Content of Thoughts Inventory (GCTI): Psychometric Characterization in Higher Education Students
Authors: Marques, Daniel R. 
Meia-Via, Mariana S. 
Espie, Colin A. 
da Silva, Carlos F. 
Allen Gomes, Ana 
Issue Date: 2016
Serial title, monograph or event: Behavioral Medicine
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.
DOI: 10.1080/08964289.2016.1180279
Rights: openAccess
Appears in Collections:I&D CINEICC - Artigos em Revistas Internacionais

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