Gross Et Al. Comparability of WSS and SPQ Supplemental Tables

Gross et al. Comparability of WSS and SPQ Supplemental Tables

Supplemental Materials

Comparing the Factor Structure of the Wisconsin Schizotypy Scales and the Schizotypal Personality Questionnaire

by G. Gross et al., 2014, Personality Disorders: Theory, Research, and Treatment

http://dx.doi.org/10.1037/per0000090

Table S1 Descriptive Statistics for the Wisconsin Schizotypy Scales (WSS) and Schizotypal Personality Questionnaire (SPQ) (n = 1437)

Criterion Coefficient # items Mean S.D. Range Alpha WSS Physical Anhedonia 61 13.68 7.15 0 – 47 .84 Perceptual Aberration 35 4.95 4.73 0 – 34 .85 Magical Ideation 30 8.16 5.15 0 – 29 .82 Social Anhedonia 40 8.95 5.84 0 – 36 .84

SPQ subscales Ideas of Reference 9 3.78 2.55 0 – 9 .76 Magical Thinking 7 1.13 1.50 0 – 7 .69 Unusual Perceptual 9 2.33 2.00 0 – 9 .71 Experience Odd Behavior 7 1.92 2.08 0 – 7 .82 Odd Speech 9 3.47 2.41 0 – 9 .77 Social Anxiety 8 3.71 2.40 0 – 8 .80 No Close Friends 9 1.83 2.03 0 – 9 .75 Affect 8 1.62 1.63 0 – 8 .66 Suspiciousness 8 2.46 2.09 0 – 8 .75

SPQ additive factor scores Cognitive-Perceptual 33 9.70 6.36 0 – 32 .88 Interpersonal 33 9.70 6.32 0 – 30 .88 Disorganized 16 5.39 3.98 0 – 16 .86 Gross et al. Comparability of WSS and SPQ Supplemental Tables

Table S2 Correlations of the Wisconsin Schizotypy Scales (WSS) and Schizotypal Personality Questionnaire (SPQ) (n = 1437)

Ideas Magical Percep. Odd Odd Social No Flat PerAb MagicID PhyAnh SocAnh of Ref Thinking Exp. Behavior Speech Anxiety Friends Affect WSS Perceptual Aberration Magical Ideation .67* Physical Anhedonia -.01 -.12* Social Anhedonia .32* .22* .43* SPQ Ideas of Reference .39* .55* -.01 .16* Magical Thinking .39* .56* -.16* .09* .38* Perceptual Experiences .57* .61* -.08 .24* .57* .50* Odd Behavior .42* .37* -.02 .33* .29* .30* .45* Odd Speech .45* .42* .02 .26* .40* .27* .51* .57* Social Anxiety .23* .19* .13* .25* .29* .09* .26* .19 .37* No Friends .26* .14* .33* .64* .17* .12* .22* .27 .31* .46* Flattened Affect .34* .25* .25* .53* .23* .14* .29* .37* .44* .48* .68* Suspiciousness .38* .41* .18* .39* .60* .25* .46* .33* .41* .36* .42* .45*

*p < .001

Note: medium effect sizes in bold, large effect sizes in bold and italics Gross et al. Comparability of WSS and SPQ Supplemental Tables

Table S3

Factor Loadings for the Exploratory Factor Analysis of the Schizotypal Personality Questionnaire (n =

Factor 1 Factor 2

Ideas of Reference .723 .284

Social Anxiety .335 .570

Magical Thinking .550 .151

Perceptual Experiences .807 .332

Odd Behavior .536 .408

No Friends .259 .788

Odd Speech .621 .493

Flattened Affect .355 .860

Suspiciousness .616 .530