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Related Experiment Videos

The Revised Behavior and Symptom Identification Scale (BASIS-R): reliability and validity.

Susan V Eisen1, Sharon-Lise Normand, Albert J Belanger

  • 1Center for Health Quality Outcomes and Economics Research, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts, USA. seisen@bu.edu

Medical Care
|November 20, 2004
PubMed
Summary
This summary is machine-generated.

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The revised Behavior and Symptom Identification Scale (BASIS-24) is a reliable and valid 24-item measure for assessing mental health treatment outcomes from the patient

Area of Science:

  • Psychometric evaluation
  • Mental health services research
  • Clinical assessment tools

Background:

  • Healthcare providers require brief, reliable, and valid measures for assessing mental health treatment outcomes.
  • The original Behavior and Symptom Identification Scale (BASIS-32) was revised to enhance its reliability, validity, and applicability.
  • The revision process aimed to improve the instrument for diverse mental health service recipients.

Purpose of the Study:

  • To field test a revised mental health outcome measure.
  • To refine the instrument based on field test data analysis.
  • To establish the reliability and validity of the final version, BASIS-24.

Main Methods:

  • A large-scale field test involving 2656 inpatients and 3222 outpatients across 27 US treatment sites.

Related Experiment Videos

  • Application of factor analysis, classic test theory, and item response theory (IRT) for item selection and psychometric assessment.
  • Utilizing IRT modeling for scoring the final 24-item instrument.

    • Main Results:

    • The final BASIS-24 comprises 24 items across 6 domains: depression/functioning, interpersonal relationships, self-harm, emotional lability, psychosis, and substance abuse.
    • Acceptable test-retest and internal consistency reliability were demonstrated.
    • Construct and discriminant validity supported the instrument's ability to differentiate mental health status and correlate with other measures.

    Conclusions:

    • The BASIS-24 is a reliable and valid instrument for assessing patient-reported mental health status.
    • The findings support the use of BASIS-24 in clinical settings for outcome evaluation.
    • The revised scale offers a valuable tool for mental health service providers.