Dr Wizard Randomly Assigns People to Two Groups

question 148

Multiple Choice

Dr. Wizard randomly assigns people to two groups. Those in the experimental group receive a "subliminal audiotape" that they are told will improve their self-esteem. The other group receives no treatment. Three weeks later Dr. Wizard interviews them and reports that people in the experimental group show higher self-esteem. What change would IMPROVE the procedure for this research?

• A) Eliminate the independent variables
• B) Use a convenience sample of people
• C) Include more demand characteristics
• D) Make the procedure double-blind

---

Definitions:

Verbal Messages

Communication through spoken, written, or signed words.

Support

Assistance or encouragement provided to someone.

Encouragement

The action of giving someone support, confidence, or hope to stimulate or promote a desired behavior or action.

Intimate Space

Zone of space most often used for very personal or intimate interactions, ranging from 0 to 1½ feet between individuals.