Principal components analysis of the Schizotypal Personality Scale (STA) and the Borderline Personality Scale (STB)

Catechol-o-Methyltransferase Genotype and Childhood Trauma May Interact to Impact Schizotypal Personality Traits

“…The scale has been widely used (Rawlings et al 2001) and proved to discriminate well between psychotic and control subjects (Jackson and Claridge 1991). Test-retest correlations of 0.60 were reported (Jackson and Claridge 1991).…”

“…Test-retest correlations of 0.60 were reported (Jackson and Claridge 1991). It has also been the subject of at least 3 independent principal component analyses which have identified 3-4 factors variously labelled as ''magical thinking'', ''unusual perceptual experiences''; ''paranoid suspiciousness'' and ''social anxiety'' (Rawlings et al 2001;Hewitt and Claridge 1989;Wolfradt and Straube 1998).…”

Autogenous/reactive obsessions and their relationship with OCD symptoms and schizotypal personality features

“…); and (c) Paranoid Suspiciousness (e.g., Do you often feel that other people have it in for you?). This three-factor solution has received considerable empirical support (Joseph & Peters, 1995;Rawlings et al, 2001;Wolfradt & Straube, 1998). In addition to its three-factor solution, the STA has good construct and discriminant validity (Rawlings et al, 2001) and evidence suggests that individuals who score high on the STA resemble schizophrenics with respect to their performance on a number of experimental tasks, e.g., negative priming paradigm (Beech, Baylis, Smithson, & Claridge, 1989;Beech & Claridge, 1987;Beech, McManus, Baylis, Tipper, & Agar, 1991;Joseph & Peters, 1995).…”

“…Despite evidence suggesting that OCD and schizophrenia are easily distinguished (see Turner & Beidel, 1988), there is a growing line of research demonstrating a possible linkage between OCD and schizotypy. Schizotypy has been conceptualized as a nonspecific psychosis-proneness (Claridge et al, 1996), a liability to schizophrenia (Lenzenweger & Korfine, 1995), or minor manifestations of psychotic disorder in normal people (Rawlings, Claridge, & Freeman, 2001). Patients with OCD exhibited significantly greater schizotypal features on the Composite Schizotypy Questionnaire (CSTQ: Bentall, Claridge, & Slade, 1989) compared to a mixed group of patients with other anxiety disorders (Enright & Beech, 1990;Enright, Claridge, Beech, & Kemp-Wheeler, 1993).…”

The role of schizotypy, mental imagery, and fantasy proneness in hallucinatory reports of undergraduate students

“…Next, participants were asked to complete the Schizotypal Personality Scale-A (STA: Claridge & Broks, 1984; see also Rawlings, Claridge, & Freeman, 2001), the LSHS (Launay & Slade, 1981; see also Levitan, Ward, Catts, & Hemsley, 1996), the shortened version of Bett's Questionnaire upon Mental Imagery (QMI: Sheehan, 1967), and the Creative Experiences Questionnaire (CEQ: ).…”