A Validation Study of Korean Version of Personality Beliefs Questionnaire-Short Form (PBQ-SF)

Jeong-Hoon Park; Youl-Ri Kim; Soon-Taek Hwang

doi:10.4306/jknpa.2016.55.2.103

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Park, Kim, and Hwang: A Validation Study of Korean Version of Personality Beliefs Questionnaire-Short Form (PBQ-SF)

Original Article

Journal of Korean Neuropsychiatric Association 2016; 55(2): 103-113.

Published online: 31 May 2016

DOI: https://doi.org/10.4306/jknpa.2016.55.2.103

A Validation Study of Korean Version of Personality Beliefs Questionnaire-Short Form (PBQ-SF)

Jeong-Hoon Park, MA¹, Youl-Ri Kim, MD, PhD^1,², Soon-Taek Hwang, PhD³

¹Department of Psychiatry, Seoul Paik Hospital, Inje University, Seoul, Korea.

²Institute of Eating Disorders and Mental Health, Inje University, Seoul, Korea.

³Department of Psychology, Chungbuk National University, Cheongju, Korea.

Address for correspondence: Youl-Ri Kim, MD, PhD. Department of Psychiatry, Seoul Paik Hospital, Inje University, 9 Mareunnae-ro, Jung-gu, Seoul 04551, Korea. Tel +82-2-2270-0063, Fax +82-2-2270-0344, youlri.kim@paik.ac.kr

Received 5 January 2016 Revised 15 March 2016 Accepted 25 March 2016

Abstract

Objectives

The Personality Belief Questionnaire-Short Form (PBQ-SF) is a self-report instrument for assessment of dysfunctional beliefs based on Beck's cognitive formulations of personality disorders. The aims of this study was to examine the reliability and validity of the Korean version of PBQ-SF in clinical samples.

Methods

The Korean version of PBQ-SF was examined in 115 participants (50 patients with personality disorder and 65 patients without personality disorder). All participants were assessed for personality disorder using the semi-structured clinical interview of the Personality Assessment Schedule. The construction validity was examined by correlation with Beck Depression Inventory, Spielberger State-Trait Anxiety Inventory, and Neuroticism-Extraversion-Openness Five-Factor Inventory neuroticism scales. Twenty four randomly sampled patients were examined for the test-retest reliability.

Results

The Korean version of PBQ-SF showed good internal consistency [Cronbach's alpha=0.73 (schizoid)–0.92 (paranoid)] and test-retest reliability [r=0.74 (narcissistic)–0.92 (paranoid)]. The PBQ-SF was correlated with depression, anxiety, and neuroticism. The overall subscales of PBQ-SF were correlated with Diagnostic and Statistical Manual of Mental Disorders based diagnosis of personality disorders.

Conclusion

Consistent with previous findings using the Korean full version of PBQ as well as the English version of PBQ-SF, our results support that the Korean version of PBQ-SF is a reliable and valid instrument for assessment of dysfunctional beliefs associated with personality pathology.

Keywords: Personality disorder, Personality Belief Questionnaire-Short Form (PBQ-SF), Diagnostic and Statistical Manual of Mental Disorders (DSM), Cognitive theory of personality disorder, Reliability, Validity

Figures and Tables

Table 1

Demographic characteristics of the participants (n=115)

Table 2

Diagnostic distribution of participants based on DSM-5

^* : Schizotypal disorder is included in the mental disorders in this study as PBQ-SF doesn't have the schizotypal scale. DSM-5 : Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, PTSD : Post-traumatic stress disorder, PBQ-SF : Personality Belief Questionnaire-Short Form

Table 3

Reliability of Personality Belief Questionnaire-Short Form

Table 4

Correlations among Personality Belief Questionnaire-Short Form subscales

^* : p<0.05, ^† : p<0.01

Table 5

Correlations Personality Belief Questionnaire-Short Form (PBQ-SF) subscales with Personality Assessment Schedule (PAS)

^* : p<0.05, ^† : p<0.01. SCH : Schizoid, PAR : Paranoid, ANT : Antisocial, NAR : Narcissistic, HIS : Histrionic, BOR : Borderline, AVO : Avoidant, DEP : Dependent, OC : Obsessive-compulsive

Table 6

Correlations between Personality Belief Questionnaire-Short Form and other scales

^* : p<0.01. BDI : Beck Depression Inventory, STAI-S : State-Trait Anxiety Inventory-State Form

Notes

^{Conflicts of Interest} The authors have no financial conflicts of interest.

Appendix

Appendix 1

Personality Belief Questionnaire-Short Form

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