Measuring interrogative suggestibility with the Italian version of the Gudjonsson Suggestibility Scales (GSS): Factor structure and discriminant validity |
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| Affiliation: | 1. Department of Translational Research and New Technologies in Medicine and Surgery, Pisa University, Italy;2. Institute of Clinical Physiology, Pisa National Council of Research, Pisa, Italy;1. Department of Psychiatry, College of Medicine, Korea University Ansan Hospital, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15355, Republic of Korea;2. Department of Psychiatry, Ansan-Korea Hospital, 366, Gwangdeok 1-ro, Sangrok-gu, Ansan-si, Gyeonggi-do 15495, Republic of Korea;1. Department of Social Psychology and Anthropology, University of Salamanca, School of Psychology, Avda. de la Merced, 109-131, 37005 Salamanca, Spain;2. Department of Psychology, California State University, Fullerton, P.O. Box 6846, Fullerton, CA 92831, USA |
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| Abstract: | The current paper provides an examination of the factor structure and discriminant validity of the Gudjonsson Suggestibility Scale (GSS 1) and of its parallel form (GSS 2), as measures of interrogative suggestibility. In Study 1, we administered the two instruments to large Italian normative samples and we run Confirmatory Factor Analyses to evaluate the factorial structure of the subscales of GSS (Yield 1, Yield 2, and Shift). In Study 2, the GSS were administered together with cognitive, personality and affect measures. A three-factor solution was proposed to account for the factorial structure of both GSS 1 and GSS 2. This solution is consistent with the theory according to which the suggestive items of Yield 1, Yield 2 and Shift subscales correspond to separate aspects of the general construct of interrogative suggestibility. Furthermore, the results of the present research confirm that GSS 1 and GSS 2 satisfactorily discriminate interrogative suggestibility from cognitive, personality and affect constructs. |
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| Keywords: | Interrogative suggestibility Eyewitness testimony Factor analysis Discriminant validity |
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