Table 5.
Regression analyses predicting negative-like symptoms from psychotic-like experiences.
| Predictor | Physical Anhedonia Scale | SPQ no close friends | SPQ constricted affect | |||
|---|---|---|---|---|---|---|
| ΔR2, p | β [95% CI], p | ΔR2, p | β [95% CI], p | ΔR2, p | β [95% CI], p | |
| Step 1 | 0.08, 0.001 | 0.01, 0.719 | 0.01, 0.491 | |||
| Control variablesa | ||||||
| Step 2 | 0.15, 0.000 | 0.14, 0.000 | 0.15, 0.000 | |||
| SPQ ideas of reference | −0.22 [−0.38, −0.06], 0.009 | −0.11 [−0.28, 0.06], 0.210 | −0.02 [−0.20, 0.15], 0.782 | |||
| SPQ paranormal beliefs | −0.08 [−0.24, 0.08], 0.310 | −0.08 [−0.25, 0.09], 0.344 | −0.23 [−0.39, −0.06], 0.008 | |||
| SPQ unusual perceptual experiences | −0.09 [−0.26, 0.07], 0.251 | 0.10 [−0.07, 0.27], 0.251 | 0.14 [−0.03, 0.31], 0.096 | |||
| SPQ suspiciousness | 0.43 [0.28, 0.58], 0.000 | 0.39 [0.24, 0.55], 0.000 | 0.34 [0.19, 0.50], 0.000 | |||
| Step 3 | 0.01, 0.653 | 0.01, 0.603 | 0.01, 0.399 | |||
| PAGE-R odd beliefs | −0.13 [−0.36, 0.10], 0.255 | 0.02 [−0.22, 0.26], 0.646 | 0.09 [−0.15, 0.33], 0.470 | |||
| PAGE-R dissociative anomalous perceptions | 0.00 [−0.18, 0.18], 0.978 | 0.12 [−0.07, 0.31], 0.221 | 0.05 [−0.14, 0.24], 0.572 | |||
| PAGE-R hallucinatory anomalous perceptions | 0.00 [−0.18, 0.20], 0.930 | −0.04 [−0.24, 0.16], 0.729 | 0.06 [−0.14, 0.26], 0.568 | |||
| Total R2 | 0.24 | 0.16 | 0.18 | |||
| F-test | F(10, 192) = 6.173, p = 0.000 | F(10, 195) = 3.593, p = 0.000 | F(10, 194) = 4.104, p = 0.000 | |||
| n | 203 | 206 | 205 | |||
a
Control variables include age, sex, and education. Physical anhedonia lacked three cases. One outlier was removed from the model predicting constricted affect. SPQ, Schizotypal Personality Questionnaire; PAGE-R, Revised Exceptional Experiences Questionnaire. The critical thresholds provided by the FDR procedure (Benjamini and Hochberg, 1995) were 0.030 (α = 0.10, trend), 0.013 (α = 0.05, significant), and 0.001 (α = 0.01, highly significant). Significant values are in boldface.