Answer: program adherence, weight is an indirect measure
Explanation:
Program adherence is also called exercise compliance or adherence and it is used in describing how a patient is sticking to his or her exercise program and following the recommendations by their personal trainer or health professional.
With regards to the question, if the behavior of interest is program adherence, weight is an indirect measure. This is because weight in this case is used as a means to determine the calories burned and other vital components to be known. Weight is an indirect measure because we are really not interested in knowing the weight, it's just a means to an end.
The answer for this question is ‘Epidemiology’
