title: The Portuguese adaptation of the Gudjonsson Suggestibility Scale (GSS1) in a sample of inmates.
abstract: This paper comprises two studies which address the validity of the Portuguese adaptation of the Gudjonsson Suggestibility Scale, GSS1. In study 1, the means and standard deviations for the suggestibility results of a sample of Portuguese inmates (N=40, Mage=37.5 years, SD=8.1) were compared to those of a sample of Icelandic inmates (Gudjonsson, 1997; Gudjonsson & Sigurdsson, 1996). Portuguese inmates' results were in line with the original results. In study 2, the means and standard deviations for the suggestibility results of the sample of Portuguese inmates were compared to those of a general Portuguese population sample (N=57, Mage=36.1 years, SD=12.7). The forensic sample obtained significantly higher scores in suggestibility measures than the general population sample. ANOVA confirmed that the increased suggestibility in the inmates sample was due to the limited memory capacity of this latter group. Given that the results of both studies 1 and 2 are in keeping with the author's original results (Gudjonsson, 1997), this may be regarded as a confirmation of the validity of the Portuguese GSS1.
authors.affiliation: Faculty of Psychology, Universidade de Lisboa, Portugal. Electronic address: rpires@fp.ul.pt.
authors.forename: Rute
authors.initials: R
authors.lastname: Pires
authors.affiliation: Faculty of Psychology, Universidade de Lisboa, Portugal.
authors.forename: Danilo R
authors.initials: DR
authors.lastname: Silva
authors.affiliation: Faculty of Psychology, UNIDE & CEAUL, Universidade de Lisboa, Portugal.
authors.forename: Ana Sousa
authors.initials: AS
authors.lastname: Ferreira
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D005260:Female; D005555:Forensic Psychiatry; D006801:Humans; D008297:Male; D008875:Middle Aged; D010552:Personality Assessment; D011174:Portugal; D011329:Prisoners / Q000523:psychology*; D011569:Psychiatric Status Rating Scales
keywords: Cross-cultural adaptation of psychological tests; External validity; Forensic samples; Gudjonsson Suggestibility Scales; Interrogative suggestibility