The Effect of Online Group Motivational Interviewing on Eating Behaviour, Healthy Lifestyle Behaviours and Quality of Life in Nursing Students With Food Addiction: Randomized Controlled Study

The aim of this study is to determine the effect of online group motivational interviewing (MI) on eating behavior, healthy lifestyle behaviors and quality of life in nursing participants with food addiction at three state universities in Ankara. The population of the research will be those who meet the diagnostic criteria for food addiction according to the Yale Food Addiction Scale. The research sample size was calculated with the G* Power package program. As a result of the power analysis, a total of 52 participants, 26 for the intervention group and 26 for the control group, were found sufficient for the sample with 90% power, 5% margin of error and 0.2065 effect size. Considering that the number of participants would decrease during the research process, the number of samples was increased by 10% to a total of 58 university participants, 29 of which were interventions and 29 were controls. Among the participants who meet the food addiction criteria, the participants who meet the inclusion criteria and agree to participate in the research will be randomly assigned to the intervention and control groups (n1=29; n2=29). After these participants are stratified according to the change (pre-contemplation and contemplation stage) phase, a simple random assignment process within the strata will be done by an independent researcher to avoid selection bias. Random assignment will be done through a simple random numbers table. The independent researcher who does not know which group is the intervention group and which group is the control group will collect the data. Data collection tools will be applied to the participants in the intervention and control groups in the pre-MI session, the post-MI session, and 2 months later in the follow-up session. It was planned to apply 5 sessions of MI to the intervention group, and to follow-up 2 months after the interviews were completed. No application will be made to the participants in the control group, and at the end of the study, a seminar on food addiction and quality of life will be given to the participants.