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Reliability and Comparability of Psychosis Patients’ Retrospective Reports of Childhood Abuse

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TLDR
The reliability and comparability of first-presentation psychosis patients' reports of childhood abuse are explored and justification for the use in future studies of retrospective reports of Childhood abuse obtained from individuals with psychotic disorders is provided.
Abstract
An increasing number of studies are demonstrating an association between childhood abuse and psychosis. However, the majority of these rely on retrospective self-reports in adulthood that may be unduly influenced by current psychopathology. We therefore set out to explore the reliability and comparability of first-presentation psychosis patients’ reports of childhood abuse. Psychosis case subjects were drawn from the Aetiology and Ethnicity of Schizophrenia and Other Psychoses (AESOP) epidemiological study and completed the Childhood Experience of Care and Abuse Questionnaire to elicit abusive experiences that occurred prior to 16 years of age. High levels of concurrent validity were demonstrated with the Parental Bonding Instrument (antipathy: rs = 0.350–0.737, P < .001; neglect: rs = 0.688–0.715, P < .001), and good convergent validity was shown with clinical case notes (sexual abuse: κ = 0.526, P < .001; physical abuse: κ = 0.394, P < .001). Psychosis patients’ reports were also reasonably stable over a 7-year period (sexual abuse: κ = 0.590, P < .01; physical abuse: κ = 0.634, P < .001; antipathy: κ = 0.492, P < .01; neglect: κ = 0.432, P < .05). Additionally, their reports of childhood abuse were not associated with current severity of psychotic symptoms (sexual abuse: U = 1768.5, P = .998; physical abuse: U = 2167.5, P = .815; antipathy: U = 2216.5, P = .988; neglect: U = 1906.0, P = .835) or depressed mood (sexual abuse: χ2 = 0.634, P = .277; physical abuse: χ2 = 0.159, P = .419; antipathy: χ2 = 0.868, P = .229; neglect: χ2 = 0.639, P = .274). These findings provide justification for the use in future studies of retrospective reports of childhood abuse obtained from individuals with psychotic disorders.

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References
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Journal ArticleDOI

The Kappa Statistic in Reliability Studies: Use, Interpretation, and Sample Size Requirements

TL;DR: The issue of statistical testing of kappa is considered, including the use of confidence intervals, and appropriate sample sizes for reliability studies using kappa are tabulated.
Journal ArticleDOI

A Parental Bonding Instrument

TL;DR: The Maudsley Obsessional-Compulsive Inventory (OCI) and Leyton Obsessionality Inventory (LOI) were used by as discussed by the authors to assess perceived levels of parental care and overprotection.
Journal ArticleDOI

Validity of adult retrospective reports of adverse childhood experiences: review of the evidence.

TL;DR: In this paper, a computer-based search, supplemented by hand searches, was used to identify studies reported between 1980 and 2001 in which there was a quantified assessment of the validity of retrospective recall of major adverse experiences in childhood.
Journal ArticleDOI

Childhood traumas: an outline and overview.

TL;DR: In this paper, the authors divide childhood trauma into two basic types and define the findings that can be used to characterize each of these types, including full, detailed memories, "omens," and misperceptions.
Journal ArticleDOI

Psychopathology and early experience: a reappraisal of retrospective reports.

TL;DR: The evidence reviewed suggests that claims concerning the general unreliability of retrospective reports are exaggerated and that there is little reason to link psychiatric status with less reliable or less valid recall of early experiences.
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