Measures
Nonsuicidal Self-injury. The Deliberate Self-Harm Inventory
(DSHI; Gratz, 2001) was used to determine the presence of NSSI history.
The DSHI is a behaviorally-based self-report questionnaire that assesses
the lifetime frequency, severity, duration, and type of NSSI behaviors
across 16 methods (e.g., cutting, burning, severe scratching, etc.);
participants were determined to have a lifetime history of NSSI if they
reported having ever engaged in NSSI during their lifetime. The
psychometric properties of the DSHI have been supported (Gratz, 2001).
Emotion Dysregulation. The Difficulties in Emotion Regulation
Scale (DERS; Gratz & Roemer, 2004) total score was also utilized in
this sample. Total scores in this sample demonstrated adequate internal
consistency (α = .89).
Interpersonal Stressor Interview. As part of a larger procedure
to develop an idiographic emotion induction script (Dixon-Gordon, Waite,
et al., 2021) and consistent with past research (Gratz et al., 2011),
participants were asked to describe a recent upsetting interpersonal
conflict, and were encouraged to describe an interaction in the context
of an ongoing relationship. Participants underwent a semi-structured
interview about a recent upsetting interpersonal conflict, wherein they
were asked specific details about the event (e.g., location), as well as
specific emotions, physical sensations, and thoughts that occurred at
the time of the conflict. Each interview took approximately 20 to 45
minutes to complete. All interviews were transcribed verbatim for use in
the current study.