Neural connections that are not used shrink and disappear

In the context of the needs-hierarchy theory, identify an accurate statement about the conditions to achieve self-actualization

a. We must have a realistic knowledge of our strengths and weaknesses. b. We must be free of constraints imposed by society and by ourselves. c. We must be secure in our self-image and in our relationships with other people. d. All of these are correct.

A researcher conducts a study with a pretest-posttest design with a nonequivalent control group. The researcher can be reasonably confident that ______________ is/are not a threat to internal validity.

Fill in the blank(s) with the appropriate word(s).