Which statement best distinguishes compliance from adherence in behavior change?

• A. Adherence implies following instructions passively.
• B. Compliance reflects active engagement and consistency with plans.
• C. Compliance is the opposite of adherence but both indicate engagement with the plan.
• D. Adherence means following instructions passively.

Answer: (C)

The key idea is the level of active involvement a person has with a plan. Adherence means the person actively engages with the plan, buys into it, and follows it consistently, often with collaboration and personal commitment. Compliance, on the other hand, describes following instructions or prescriptions, typically in a more passive or directive way and without the same sense of personal agreement or ongoing collaboration.

The best statement reflects that these are distinct (often seen as opposites) while both relate to following a plan. It recognizes that adherence involves active participation, whereas compliance is more about following directives, which can feel less collaborative. The other options mischaracterize adherence as passive or misstate the nature of compliance, so they don’t capture the true difference in engagement level.