Evaluating Within-Person and Between-Person Effects Of A Personalized Normative Feedback Intervention On Drinking As They Are Moderated By Self-Determination

Alcohol Drinking Clinical Trial

Official title:

Self-Determination Theory as A Framework For Evaluating Within-Person Effects Of Personalized Normative Feedback On Drinking

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03583515
• Other study ID #: 1F31AA026195-01A1
• Secondary ID: 1F31AA026195-01A
• Status: Completed
• Phase: N/A
• Start date: April 25, 2018
• Est. completion date: August 31, 2019

Study information

• Verified date: April 2020
• Source: University of Houston
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study evaluates within-person and between-person effects of a personalized normative feedback intervention and injunctive norms as they are altered by self-determination in heavy drinkers. Half of participants will receive personalized normative feedback and the other half will receive control feedback about media use habits.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 136
• Est. completion date: August 31, 2019
• Est. primary completion date: August 31, 2019
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Student at the University of Houston

• Above 18 years of age

• Heavy drinker (more than 4 drinks [women] or 5 drinks [men] on a single occasion in the last 2.5 weeks and drinks, on average, at least once per week.

Related Conditions & MeSH terms

• Alcohol Drinking

Intervention

Behavioral:
• Alcohol-Specific Personalized Normative Feedback
Participants will receive personalized normative feedback about drinking.
• Social Media Personalized Normative Feedback
Participants will receive personalized normative feedback about social media use.

Locations

Country	Name	City	State
United States	University of Houston	Houston	Texas

Sponsors (2)

Lead Sponsor	Collaborator
University of Houston	National Institute on Alcohol Abuse and Alcoholism (NIAAA)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Between-Person Self-Determination by PNF Interaction Predicting Consumption	A structural equation model will be fit with baseline consumption, self-determination, intervention condition, and the interaction between self-determination and condition predicting follow-up alcohol consumption. Consumption will be measured with the Alcohol Consumption Index, Quantity-Frequency-Peak Alcohol Use Index, and the Daily Drinking Questionnaire. These scales will be used as indicators of a single latent consumption variable. That latent consumption measure will be the outcome of interest.	2-4 Weeks
Primary	Within-Person Self-Determination by PNF Interaction Predicting Consumption	A multilevel model will be fit with baseline consumption, daily self determination, intervention condition, and the interaction between condition and daily self-determination predicting daily alcohol consumption. Consumption will be measured as the number of drinks consumed the previous evening.	17 Days
Secondary	Between-Person Self-Determination by PNF Interaction Predicting Alcohol-Related Problems	A structural equation model will be fit with baseline consumption, alcohol-related problems, self-determination, intervention condition, and the interaction between self-determination and condition predicting follow-up alcohol-related problems. Alcohol-related problems will be measured with the Rutgers Alcohol Problems Index and the Young Adult Alcohol Consequences Questionnaire. Each of these problems measures will be split to form two indicators (for a total of four problems indicators) for an overall problems latent variable. This problems latent variable will then be used as the outcome of interest.	2-4 Weeks
Secondary	Within-Person Self-Determination by PNF Interaction Predicting Alcohol-Related Problems	A multilevel model will be fit with baseline consumption, daily self determination, intervention condition, and the interaction between condition and daily self-determination predicting daily alcohol alcohol-related problems. Alcohol-related problems will be measured with a checklist of non-overlapping items from the Rutgers Alcohol Problems Index and the Young Adult Alcohol Consequences Questionnaire. This combined checklist will be used to create the overall problems outcome of interest.	17 Days