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The positive and negative suicide ideation inventory: development and validation

A Osman1, P M Gutierrez, B A Kopper

  • 1Department of Psychology, University of Northern Iowa, Cedar Falls 50614-0505, USA. augustine.osman@uni.edu

Psychological Reports
|July 24, 1998
PubMed
Summary

Researchers developed the Positive and Negative Suicide Ideation inventory to measure suicidal thoughts. This brief self-report tool effectively assesses both positive and negative ideation frequency.

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Area of Science:

  • Psychology
  • Psychiatry
  • Mental Health Research

Background:

  • Suicidal behavior is a significant public health concern.
  • Understanding the nuances of suicidal thoughts, both positive and negative, is crucial for effective intervention.
  • Existing measures may not adequately capture the frequency of these distinct thought patterns.

Purpose of the Study:

  • To develop and validate a brief self-report measure for assessing the frequency of positive and negative thoughts related to suicidal behavior.
  • To introduce the Positive and Negative Suicide Ideation (PNSI) inventory.

Main Methods:

  • Two studies were conducted with undergraduate samples.
  • Study 1 involved exploratory factor analysis of a 20-item inventory.
  • Study 2 utilized confirmatory factor analysis to validate the factor structure.

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Main Results:

  • Exploratory factor analysis identified two factors: Positive Ideation and Negative Ideation.
  • Confirmatory factor analysis supported an oblique two-factor model, indicating an excellent fit to the data.
  • Preliminary evidence for concurrent and predictive validity was established.

Conclusions:

  • The Positive and Negative Suicide Ideation inventory is a well-developed self-report measure.
  • The inventory effectively assesses the frequency of positive and negative thoughts associated with suicidal behavior.
  • This tool can aid in understanding and potentially intervening in suicidal ideation.