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Understanding suicidal ideation-a network analysis of the Interpersonal Needs Questionnaire
Katharina Conrad1, Thomas Forkmann1, Dajana Schreiber1
1Department of Clinical Psychology, University of Duisburg-Essen, Essen, Germany.
Plos One
|November 13, 2023
Summary
This study refined the Interpersonal Needs Questionnaire (INQ) to better identify risk factors for suicidal ideation. A shortened INQ version focuses on key items strongly associated with suicidal thoughts.
Area of Science:
- Psychology
- Clinical Psychology
- Mental Health Research
Background:
- The Interpersonal-Psychological Theory of Suicidal Behavior (IPTS) links suicidal ideation to Perceived Burdensomeness (PB) and Thwarted Belongingness (TB).
- Previous research has questioned the empirical validation and measurement of TB within the IPTS framework.
- Understanding central aspects of TB related to suicidal ideation is crucial for developing effective prevention strategies.
Purpose of the Study:
- To investigate the relationship between specific items of the Interpersonal Needs Questionnaire (INQ) and suicidal ideation.
- To identify which aspects of Thwarted Belongingness (TB) are most centrally associated with suicidal ideation.
- To develop a more accurate and concise measurement tool for assessing risk factors in suicidal behavior.
Main Methods:
- Network analyses were performed on data from 3,404 individuals, including clinical and nonclinical populations.
- The study utilized the Interpersonal Needs Questionnaire (INQ) and a variable measuring suicidal ideation.
- A significant portion of the sample (30%) reported experiencing suicidal ideation.
Main Results:
- Network analyses indicated that not all items on the INQ were significantly related to suicidal ideation.
- The most central items within the INQ network did not consistently show the strongest associations with suicidal ideation.
- Specific items demonstrated stronger correlations with suicidal ideation than others within the analyzed network.
Conclusions:
- The findings suggest a need to refine the measurement of Thwarted Belongingness (TB) in relation to suicidal ideation.
- A shortened version of the INQ, comprising four items with the strongest associations to suicidal ideation, is proposed.
- This revised INQ may offer a more precise tool for assessing psychological risk factors for suicidality.
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