Focusing on the addition of positive activities to the life of a patient with depression is a behavioral technique known as:

A) behavioral contingency management.
B) behavioral cognition.
C) behavioral activation.
D) behavioral confrontation.

Gramsci differed from Marx in his analysis of

A) the division of groups in society.
B) the need for the proletariat to overthrow the bourgeoisie.
C) political control.
D) capitalism.

In which sampling technique do researchers choose a sample that reflects the numerical composition of various subgroups in a population?

A) Simple random sampling
B) Quota sampling
C) Cluster sampling
D) Purposive sampling