Pilkonis, Paul
(2018)
Deliberate Self-Harm Questionnaire - Personality Studies.
[Dataset]
(Unpublished)
Abstract
This submission contains data and codebooks from several personality studies conducted 1990-2017, organized by assessment instrument. For demographic information about the study participants, please refer to Background Information Questionnaire (BIQ) - Personality Studies (http://d-scholarship.pitt.edu/id/eprint/35424).
Studies:
1. Interpersonal Functioning in Borderline Personality ("Interpersonal Functioning")
Description:
15-item questionnaire adapted from a measure of Non-suicidal self-injury (NSSI) developed by Klonsky & Olino. The internally adapted version assesses lifetime and past-year frequency of 13 different NSSI behaviors. Behaviors must have been performed intentionally and without suicidal intent.
From Klonsky & Olino (2008): “A questionnaire assessed lifetime frequency of 12 different NSSI behaviors performed “intentionally (i.e., on purpose) and without suicidal intent” (i.e., banging/hitting self, biting, burning, carving, cutting, wound picking, needle sticking, pinching, hair pulling, rubbing skin against rough surfaces, severe scratching, and swallowing chemicals).
Data Notes: The original measure assessed lifetime frequency only, whereas our adaptation added items for the last 12 months.
Reliability:
From Klonsky & Olino (2008): Reliability and validity were examined in a sample of 761 college students. Internal consistency of the 12 NSSI behaviors was excellent (α = .84). Item-total correlations for the behaviors ranged from .22 (swallowing chemicals) to .60 (banging/hitting self), with a median of .52. One-to-four week test–retest reliability was examined in a subsample of 59 college students. Test–retest reliability of the omnibus NSSI scale was .85. Spearman correlations between Time 1 and Time 2 reports of lifetime frequency of NSSI behaviors ranged from .54 (pinching) to .94 (interfering with wound healing), with a median of .74 indicating good reliability.
Citations:
Klonsky, E. D., & Olino, T. M. (2008). Identifying clinically distinct subgroups of self-injurers among young adults: a latent class analysis. Journal of consulting and clinical psychology, 76(1), 22.
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