Reliability and Validity of a Treatment Fidelity Assessment for Motivational Interviewing Targeting Sexual Risk Behaviors in People Living with HIV/AIDS

This study psychometrically evaluates the Motivational Interviewing Treatment Integrity Code (MITI) to assess fidelity to motivational interviewing to reduce sexual risk behaviors in people living with HIV/AIDS. 74 sessions from a pilot randomized controlled trial of motivational interviewing to red...

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Bibliographic Details
Published in:Journal of clinical psychology in medical settings 2013-12, Vol.20 (4), p.440-448
Main Authors: Seng, Elizabeth K., Lovejoy, Travis I.
Format: Article
Language:English
Subjects:
Acquired immune deficiency syndrome
Acquired Immunodeficiency Syndrome - prevention & control
Acquired Immunodeficiency Syndrome - psychology
Acquired Immunodeficiency Syndrome - transmission
Aged
AIDS
Attitude to Health
Family Medicine
Female
Follow-Up Studies
General Practice
Health behavior
Health Psychology
HIV
Human immunodeficiency virus
Humans
Intervention
Male
Medicine
Medicine & Public Health
Middle Aged
Motivational Interviewing - methods
Motivational Interviewing - standards
Observer Variation
Pilot Projects
Principal Component Analysis
Psychometrics
Reproducibility of Results
Risk-Taking
Sexual behavior
Sexual Behavior - psychology
Treatment Outcome
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Summary:This study psychometrically evaluates the Motivational Interviewing Treatment Integrity Code (MITI) to assess fidelity to motivational interviewing to reduce sexual risk behaviors in people living with HIV/AIDS. 74 sessions from a pilot randomized controlled trial of motivational interviewing to reduce sexual risk behaviors in people living with HIV were coded with the MITI. Participants reported sexual behavior at baseline, 3-month, and 6-months. Regarding reliability, excellent inter-rater reliability was achieved for measures of behavior frequency across the 12 sessions coded by both coders; global scales demonstrated poor intraclass correlations, but adequate percent agreement. Regarding validity, principle components analyses indicated that a two-factor model accounted for an adequate amount of variance in the data. These factors were associated with decreases in sexual risk behaviors after treatment. The MITI is a reliable and valid measurement of treatment fidelity for motivational interviewing targeting sexual risk behaviors in people living with HIV/AIDS.
ISSN:1068-9583
1573-3572
DOI:10.1007/s10880-012-9343-y