Current CAPE-15: A measure of recent psychotic-like experiences and associated distress

Capra, Carina, Kavanagh, David J., Hides, Leanne, & Scott, James G. (2015) Current CAPE-15: A measure of recent psychotic-like experiences and associated distress. Early Intervention in Psychiatry. (In Press)

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Abstract

Aim

Psychotic-like experiences (PLEs) are common in young people and are associated with both distress and adverse outcomes. The Community Assessment of Psychic Experiences-Positive Scale (CAPE-P) provides a 20-item measure of lifetime PLEs. A 15-item revision of this scale was recently published (CAPE-P15). Although the CAPE-P has been used to assess PLEs in the last 12 months, there is no version of the CAPE for assessing more recent PLEs (e.g. 3 months). This study aimed to determine the reliability and validity of the current CAPE-P15 and assess its relationship with current distress.

Method

A cross-sectional online survey of 489 university students (17–25 years) assessed lifetime and current substance use, current distress, and lifetime and 3-month PLEs on the CAPE-P15.

Results

Confirmatory factor analysis indicated that the current CAPE-P15 retained the same three-factor structure as the lifetime version consisting of persecutory ideation, bizarre experiences and perceptual abnormalities. The total score of the current version was lower than the lifetime version, but the two were strongly correlated (r = .64). The current version was highly predictive of generalized distress (r = .52) and indices that combined symptom frequency with associated distress did not confer greater predictive power than frequency alone.

Conclusion

This study provided preliminary data that the current CAPE-P15 provides a valid and reliable measure of current PLEs. The current CAPE-P15 is likely to have substantial practical utility if it is later shown to be sensitive to change, especially in prevention and early intervention for mental disorders in young people.

Impact and interest:

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ID Code: 91329
Item Type: Journal Article
Refereed: Yes
Keywords: assessment, psychotic-like experience, suicidal behaviour
DOI: 10.1111/eip.12245
ISSN: 1751-7885
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Psychology & Counselling
Deposited On: 17 Dec 2015 02:10
Last Modified: 17 Dec 2015 22:47

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