Predicting nonsuicidal self-injury using a variant of the implicit association test

Area of Science:

• Psychology
• Clinical Psychology
• Psychopathology

Background:

• Nonsuicidal self-injury (NSSI) is a growing public health concern requiring effective risk assessment tools.
• Existing measures for NSSI risk are limited by individuals' motivation to conceal behavior.
• Implicit measures offer a potential solution by bypassing conscious self-reporting.

Purpose of the Study:

• To develop and evaluate an implicit measure, the Past NSSI Implicit Association Test (P-NSSI-IAT), for assessing NSSI risk.
• To determine the P-NSSI-IAT's ability to detect past NSSI behavior.
• To assess the P-NSSI-IAT's prospective predictive utility for future NSSI.

Main Methods:

• Two preregistered studies were conducted with a total of 455 participants (N=83, N=372).
• The P-NSSI-IAT was administered to assess implicit associations related to past NSSI.
• Predictive validity was examined by assessing NSSI occurrence one month later.

Main Results:

• P-NSSI-IAT scores effectively differentiated between individuals with and without a history of NSSI.
• The P-NSSI-IAT prospectively predicted future NSSI.
• The measure improved prediction of NSSI beyond established risk factors.

Conclusions:

• The P-NSSI-IAT demonstrates significant potential as a tool for NSSI risk assessment.
• This implicit measure may help overcome limitations of self-report in identifying individuals at risk for NSSI.
• Further research is warranted to validate the P-NSSI-IAT's predictive capabilities for NSSI behavior.