Two Researchers Analyze the Same Data Set

question 11

Multiple Choice

Two researchers analyze the same data set.Researcher A uses a two-independent-sample t test and decides to retain the null hypothesis.Researcher B uses a related-samples t test and decides to reject the null hypothesis.Which of the following is a likely explanation for the disparity in the decisions made?

• A) The two-independent-sample t test had greater power to detect the effect.
• B) The two-independent-sample t test was associated with fewer degrees of freedom.
• C) The related-samples t test had greater power to detect the effect.
• D) The related-samples t test was associated with more degrees of freedom.

---

Definitions:

Psychotherapy

A therapeutic treatment that involves psychological methods, particularly when based on regular personal interaction with adults, to help a person change behavior and overcome problems in desired ways.

12-step Program

A set of guiding principles outlining a course of action for recovery from addiction, compulsion, or other behavioral problems.

AA

Alcoholics Anonymous, a self-help group designed to support individuals in achieving and maintaining sobriety.

CBT

Cognitive Behavioral Therapy, a form of psychotherapy that treats problems by modifying dysfunctional emotions, behaviors, and thoughts.