Glasgow Content of Thoughts Inventory (GCTI)
Inventário de Pensamentos de Glasgow - Sono
Original VersionHarvey, K. J., & Espie, C. A. (2004)
Portuguese VersionMarques, D., Allen Gomes, A., Meia-Via, M., & Couto (2012)
General DescriptionGCTI is an instrument concerned in evaluating individuals´ thoughts when they cannot fall asleep. It consists of 25 items. Total scores may range from 25 to 100. The higher the score the greater the intrusiveness and frequency of dysfunctional thoughts at bedtime.
Harvey, K. J., & Espie, C. A. (2004). Development and preliminary validation of the Glasgow Content of Thoughts Inventory (GCTI): a new measure for the assessment of pre-sleep cognitive activity. British Journal of Clinical Psychology, 43, 409-420. doi/10.1348/0144665042388900
Marques, D., Meia-Via, M., Espie, C., da Silva, C., & Allen Gomes, A. (2016). European Portuguese adaptation of Glasgow Content of Thoughts Inventory (GCTI): Psychometric characterization in higher education students. Behavioral Medicine.doi:10.1080/08964289.2016.1180279 http://hdl.handle.net/10316/46850
Daniel Ruivo Marques – drmarques@ua.pt