Abstract
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.
Original language | English (US) |
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Pages (from-to) | 440-448 |
Number of pages | 9 |
Journal | Journal of Clinical Psychology in Medical Settings |
Volume | 20 |
Issue number | 4 |
DOIs | |
State | Published - Dec 2013 |
Externally published | Yes |
Keywords
- HIV/AIDS
- Motivational interviewing
- Psychometrics
- Sexual risk behaviors
- Treatment fidelity
ASJC Scopus subject areas
- Clinical Psychology