A Researcher Wanted to Compare the Relative Effectiveness of Two

question 53

Multiple Choice

A researcher wanted to compare the relative effectiveness of two techniques for reducing anxiety: a drug and a relaxation exercise.The researcher gave the experimental group both the drug and the relaxation exercise.The control group was given neither the drug nor the exercise.The difference between the drug and the relaxation exercise cannot be compared in this experiment because the experiment involves a

• A)redundant relationship.
• B)confounding.
• C)causal inference.
• D)correlation.

---

Definitions:

Essential Elements

Fundamental components or ingredients necessary for a process or system to function effectively.

Single-subject Design

A research design that focuses on the responses of one participant to document the effect of a variable.

Baseline Data

Initial information gathered before a project or program begins, used for comparison with data collected during and after implementation to assess progress.

Outcome

The result or effect of an action, situation, or event.