The relationship of the Rorschach Schizophrenia Index to psychotic features in a child psychiatric sample

In this study we investigated the reliability and validity of the Rorschach Schizophrenia Index (SCZI) from Exner's (1978, 1993) Comprehensive System for a sample of 413 child psychiatric inpatients by examining relationships with the Personality Inventory for Children-Revised (PIC-R) and chart diagnoses. Interscorer reliability and internal consistency were acceptable. Multivariate analyses of variance results revealed significantly different PIC-R profiles for those with and without elevated SCZI scores, with significant differences emerging on the PIC-R Psychosis (PSY) scale and 2 cognitive triad scales (Intellectual Screening and Development), which have been reported to be more frequently elevated in PIC-R profiles of children with psychotic disorders. Significant differences were found across SCZI groups for the PSY scale, Reality Distortion scale, reality testing critical items and chart diagnoses of psychotic disorder. Implications for clinical interpretation of the SCZI with children and issues for further research with this population are discussed.