Question

Studies that seek to investigate the efficacy of psychotherapy typically include a treatment group, a pre-treatment assessment of client functioning, a post-treatment assessment of client functioning, and__________.a. a control group.b. a manipulation check.c. an internal audit.d. none of the above

Answer 1

The correct answer is a. a control group

Step-by-step explanation:

In scientific experiments, usually the population that is being studied is divided into two groups: a treatment group, where the treatment that is being tested is applied to them, and a control group, where no treatment is applied. This division of the population in two, which is usually done during the pre-treatment assessment of client functioning, helps to isolate the variables that are under study. If after the treament is applied, the treatment group reacts differently than the control group, it can be said that the experiment showed that the treatment has an effect. This is usually evaluated during the post-treatment assessment of client functioning phase.