Answer and explanation:
The hypothese of the efficacy and effectiveness of psychological treatments for mood, anxiety, and related disorders is that in many cases when depressed or anxious patients must follow a treatment, these ones should be integral treatments combinating medication and therapy, so that there are fewer risks of relapsing.
Studying and understanding both the efficacy and effectiveness of this things is very important because it allows proffessionals to understand what's best for their patients and the potential impact the chosen treatment may have on them.