Between Risk Knowledge, Self-Efficacy, Environmental Observation and Outcome Expectations with Behavior among Overweight and Obese Adolescents

Obesity is a global health problem which tends to keep increasing from year to year in various age groups, including children and adolescents. Social cognitive theory from Bandura's, behavioral, cognitive and personal factors, and the influence of environment influence each other. The purpose of this research is to find the correlation of risk knowledge, self-efficacy, environment observations and outcome expectations with behavior to reduce weight among overweight and obese adolescents. The design of this research was analytic observation. The subjects were 90 overweight and obese adolescents who had filled out the questionnaires to assess their risk knowledge, self-efficacy, environmental observations, outcome expectations and behavior to reduce weight. The sampling technique used quota sampling. The results shows that there is a positive correlation and statistically significant among behavior to reduce weight in a row with self-efficacy ?= 0.14, CI 95%= 0.04?0.24, p= 0.006), environmental observation (?= 0.11, CI 95%= 0.00 ? 0.23, p= 0.047), and outcome expectation (?= 0.11, CI 95%= 0.00 ? 0.22, p= 0.041), but no correlation was found in the knowledge of obesity risk (?= -0.14, CI 95%= -0.44? 0.15, p= 0.342). Multiple linear regression analysis indicated that the self-efficacy gave the most significant influence than others. The study concluded that risk knowledge, self-efficacy, environmental observation and outcome expectation variables altogether can influence the behavior of weight loss by 38% (adjusted R 2 = 38.06).