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Thirty-Third Annual Meeting of the Society for Research in Psychopathology

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95. Examining the relation between a clinical measure and self-report measure of borderline personality disorder in adolescents

Background Borderline personality disorder (BPD) is a debilitating mental health disorder. Adolescent BPD presents similarly to adult BPD. Research has confirmed the reliability and validity of a BPD construct in adolescents; however, it is not regularly made in clinical settings. This is often due to uncertainty about differential diagnosis, and concerns about the feasibility to make accurate diagnoses.

Purpose The purpose of this study was to examine the relation between a validated clinical interview and a validated self-report measure of adolescent BPD.

Method Our sample (N=81; F=62%; Mage=14.86 years), included both community and clinically referred individuals. The Childhood Interview for DSM-IV Borderline Personality Disorder (CI-BPD; Zanarini, 2003) was used to assess BPD diagnosis, and the 11-item Borderline Personality Features Scale for Children (BPFSC-11; Sharp, et al., 2014) was used to assess self-reported BPD features. We used Exploratory Factor Analysis (EFA) with maximum likelihood extraction and oblique rotation (goemin) alongside parallel analysis in MPlus 8.2 to determine the number of factors when using data from both measures.

Results An EFA on the 20 items from the CI-BPD and the BPFSC indicated that a one-factor model was the best solution. Two- and three-factor solutions were not supported by parallel analysis or theory. Four- and five-factor solutions did not converge. A one-factor solution was well supported; only the first eigenvalue was higher than the corresponding parallel analysis eigenvalue (9.468, 2.230, respectively). One item from the BPFSC loaded below .400, so this item was removed and a second EFA was run on the remaining 19 items, which revealed the same results as above.

Conclusion Our results indicated that both the clinical and self-report measure of adolescent BPD were measuring the same construct. This research is promising as it illustrates that the 11-item BPFSC might be a feasible option to use in clinic setting as an appropriate screening tool for adolescent BPD. However, more research is needed, including further investigation of the relation between the CI-BPD and BPFSC using Confirmatory Factor Analysis.

Victoria Stead
McMaster University

Christina Brook
McMaster University

Khrista Boylan
McMaster University

Louis Schmidt
McMaster University


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