Examining a transdiagnostic measure of repetitive thinking in depressed, formerly depressed and never-depressed individuals

Suraj Samtani; Peter M McEvoy; Alison E J Mahoney; Aliza Werner-Seidler; Susan S Y Li; Brittany C McGill; Julia Tockar; Michelle L Moulds

doi:10.1016/j.jad.2017.12.081

Examining a transdiagnostic measure of repetitive thinking in depressed, formerly depressed and never-depressed individuals

J Affect Disord. 2018 Mar 15:229:515-522. doi: 10.1016/j.jad.2017.12.081. Epub 2018 Jan 3.

Authors

Suraj Samtani¹, Peter M McEvoy², Alison E J Mahoney³, Aliza Werner-Seidler⁴, Susan S Y Li¹, Brittany C McGill⁵, Julia Tockar¹, Michelle L Moulds⁶

Affiliations

¹ School of Psychology, UNSW, Sydney, NSW 2052, Australia.
² Centre for Clinical Interventions, Perth, Western Australia, Australia; School of Psychology and Speech Pathology, Curtin University, Australia.
³ Clinical Research Unit for Anxiety and Depression, UNSW Sydney at St. Vincent's Hospital, Sydney, Australia.
⁴ Black Dog Institute, UNSW, Sydney, Australia.
⁵ Behavioural Sciences Unit, School of Women's and Children's Health, UNSW, Sydney, Australia.
⁶ School of Psychology, UNSW, Sydney, NSW 2052, Australia. Electronic address: m.moulds@unsw.edu.au.

PMID: 29353211
DOI: 10.1016/j.jad.2017.12.081

Abstract

Background: Evidence that repetitive negative thinking (RNT) is a shared feature of a number of disorders has prompted the need for transdiagnostic self-report instruments; that is, measures of RNT that can be administered to individuals irrespective of their diagnosis. The Repetitive Thinking Questionnaire (RTQ; McEvoy et al., 2010) was developed to meet this need, and its psychometric properties and capacity to predict psychopathology have been tested in undergraduate and clinically anxious samples.

Methods: We administered the RTQ to currently depressed (n = 29), formerly depressed (n = 61) and never-depressed (n = 93) community participants.

Results: The RTQ demonstrated good psychometric properties, with excellent internal consistency for the RNT subscale (α=.93) and good convergent validity with measures of negative affect and psychopathology symptoms (rs= .47-.61). In addition, and in accord with our predictions, currently depressed and recovered depressed participants reported more RNT than never-depressed participants, but currently and recovered depressed participants did not differ. In addition, RNT scores explained additional variance in depression and anxiety symptoms, after controlling for gender, age, neuroticism, state negative affect, and intolerance of uncertainty.

Limitations: Our sample was drawn from the community but participants were not treatment-seeking, and we employed a cross-sectional design.

Discussion: Taken together with previous experimental and longitudinal studies, our results support the utility of addressing RNT in the treatment and prevention of relapse in depression. Moreover, these data confirm the utility of the RTQ as a brief, transdiagnostic self-report measure of RNT.

Keywords: Depression; Repetitive thinking; Rumination; Transdiagnostic; Worry.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adolescent
Adult
Anxiety Disorders / diagnosis*
Anxiety Disorders / psychology
Cross-Sectional Studies
Depressive Disorder / diagnosis*
Depressive Disorder / psychology
Female
Humans
Male
Middle Aged
Negativism*
Neuroticism
Psychometrics
Psychopathology
Self Report
Surveys and Questionnaires
Thinking*
Uncertainty
Young Adult