A Brief Negotiation Interview Adherence Scale for Smoking Cessation: A psychometric evaluation

Area of Science:

• Clinical Psychology
• Public Health
• Behavioral Medicine

Background:

• Brief interventions are crucial for smoking cessation.
• Existing adherence scales exist for alcohol and opioid use disorders but not for smoking cessation.
• The Brief Negotiation Interview (BNI) is a brief intervention incorporating motivational interviewing, feedback, and behavioral contracting.

Purpose of the Study:

• To develop and psychometrically validate the Brief Negotiation Interview Adherence Scale for smoking cessation (BAS-S).
• To assess the adherence to BNI components in a clinical trial setting.

Main Methods:

• Developed the BAS-S, requiring raters to assess BNI implementation.
• Three independent raters evaluated 388 audio-recorded BNI sessions from a clinical trial.
• Utilized factor analysis to determine the scale's structure and psychometric properties.

Main Results:

• The BAS-S demonstrated excellent internal consistency, discriminant validity, inter-rater reliability, and construct validity.
• A 3-factor (10-item) solution emerged: Feedback, NRT Motivation, and Plan Negotiation.
• The Feedback factor predicted lower 7-day tobacco abstinence rates at 3-month follow-up (p < 0.03).

Conclusions:

• The BAS-S is a psychometrically valid measure for assessing adherence to the BNI for smoking cessation.
• The findings suggest a need to re-evaluate the 'Feedback' component within the BNI for smoking cessation effectiveness.