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Related Experiment Video

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Assessing Dyslexia at Six Year of Age

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Published on: May 1, 2020

The criterion and discriminant validity of the Referential Thinking (REF) scale.

Mike Startup¹, Rebecca Sakrouge, Oliver J Mason

¹School of Psychology, University of Newcastle, Callaghan, NSW 2308, Australia. mike.startup@newcastle.edu.au

Psychological Assessment

|March 17, 2010

Summary

The Referential Thinking (REF) scale accurately measures ideas of reference in the general population. It effectively distinguishes between delusions of reference and auditory verbal hallucinations in psychotic patients.

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Area of Science:

Psychology
Psychiatry
Clinical Psychology

Background:

Ideas of reference, both simple and guilty, are common in the general population.
The Referential Thinking (REF) scale is a self-report measure designed to assess these ideas.
Validation of the REF scale is crucial for its clinical and research applications.

Purpose of the Study:

To validate the Referential Thinking (REF) scale's interpretation of scores.
To compare REF scores with delusion ratings in psychotic patients.
To determine if REF scores are better predicted by delusions of reference (DoRs) than auditory verbal hallucinations (AVHs).

Main Methods:

The REF scale was administered to 56 healthy controls and 53 acutely psychotic patients.
Patients' delusions of reference (DoRs) and auditory verbal hallucinations (AVHs) severity were assessed via structured interviews.
Statistical analyses were used to compare groups and assess correlations.

Main Results:

REF scores were significantly different between patients and controls.
REF scores also differed between patients with and without DoRs.
REF scores correlated significantly with DoR severity, but not AVH severity.

Conclusions:

The findings support the interpretation of REF scores as a measure of proneness to simple and guilty ideas of reference.
The REF scale demonstrates utility in distinguishing between proneness to delusions of reference and auditory verbal hallucinations.
The study validates the REF scale for use in both general and clinical populations, particularly in assessing delusional ideation.