Factor structure and psychometric properties of the modified scale for suicidal ideation among suicidal youth

Jeremy W. Pettit, Monica J. Garza, Kelly E. Grover, Dawnelle Schatte, Sharon T. Morgan, Andrew Harper, Ann E. Saunders

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Background: Although suicidal behaviors occur at a high rate in adolescence, relatively few interview-based measures are available to assess suicidal ideation among youth. Existing interview measures are limited by a paucity of empirical study, a failure to conform to standard suicide nomenclature, or a lengthy administration time. This study presents data on the psychometric properties and factor structure of the brief, layperson- administered Modified Scale for Suicidal Ideation (MSSI) among suicidal youth. Methods: The MSSI was administered to an inpatient sample of 102 suicidal youth aged 13-17 years. Additional interview and self-report measures were administered to examine the convergent validity of the MSSI. Results: Consistent with previous findings among suicidal adults, the MSSI displayed good internal consistency and expected patterns of convergent validity. Principal component analysis revealed a bidimensional structure, with factors corresponding to (1) Desire and Ideation and (2) Plans and Preparations. Each factor displayed acceptable internal consistency and expected patterns of convergent validity via associations with hopelessness, depressive symptoms, impulsivity, and a self-report measure of suicidal behaviors. The Plans and Preparations factor significantly associated with the presence of a current suicide attempt and with greater suicide intent among attempters, whereas the Desire and Ideation factor did not. Conclusions: The MSSI appears to be a reliable and valid instrument to assess suicidal ideation among distressed youth. Clinicians are encouraged to pay particular attention to responses on the Plans and Preparations factor given its stronger association with suicide attempt and more serious suicide intent.

Original languageEnglish (US)
Pages (from-to)769-774
Number of pages6
JournalDepression and Anxiety
Volume26
Issue number8
DOIs
StatePublished - Aug 2009
Externally publishedYes

Fingerprint

Suicidal Ideation
Psychometrics
Suicide
Interviews
Self Report
Impulsive Behavior
Principal Component Analysis
Terminology
Inpatients
Depression

Keywords

  • Adolescents
  • Assessment
  • Inpatient
  • Suicide
  • Suicide attempt

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Clinical Psychology

Cite this

Factor structure and psychometric properties of the modified scale for suicidal ideation among suicidal youth. / Pettit, Jeremy W.; Garza, Monica J.; Grover, Kelly E.; Schatte, Dawnelle; Morgan, Sharon T.; Harper, Andrew; Saunders, Ann E.

In: Depression and Anxiety, Vol. 26, No. 8, 08.2009, p. 769-774.

Research output: Contribution to journalArticle

Pettit, Jeremy W. ; Garza, Monica J. ; Grover, Kelly E. ; Schatte, Dawnelle ; Morgan, Sharon T. ; Harper, Andrew ; Saunders, Ann E. / Factor structure and psychometric properties of the modified scale for suicidal ideation among suicidal youth. In: Depression and Anxiety. 2009 ; Vol. 26, No. 8. pp. 769-774.
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