Study objective: To train participants to select low-caloriefood, rather than high-calorie food, when eating between-meal snacks. Design: A multiple-baseline design was used. A follow-up survey was conducted immediately, 1 month, and 1 year after the end of the experiment. Sett/ngs: The intervention was done in participant's daily lives. Participants: Participants were 3 overweight male college students. Intervention: The intervention included point-gain and point-loss systems. Measure: Each day during the study, the caloric value of all snacks and of the low-caloriefood eaten was calculated, and the weight of the participants was measured. Results: Eating low-calorie food increased when the intervention was a combination of a point-gain and a point-loss system. After the intervention, participant had lost between 3 and 8 kg, compared with their base-line weight, however, the follow-up survey revealed that only 1 of the 3 participants had maintained his weight loss. Conclusion: Focusing on between-meal snacks and reinforceing the target behavior by using self-recording and a Point-loss system was an effective intervention for obesity, But for long-term maintenance, continued self-recording is indispensable.
