It is said that a treatment evaluation should also include activities evaluations. Would you please kindly give me a clue about it?

Not at all.

Thank you for the information.

The most common components of a program also include activities, services, and products (outputs). Some of your activities may include the following:
o Training/education activities for the staff
o Substance use assessments (methods and tools) and other assessments (mental health, quality of life, HIV risks, etc.)
o Intervention (education, treatment, etc.)
o Services provided to the clients and their families