RESEARCH STUDY 12.1
Dr. Fletcher is interested in whether joining a fraternity/sorority causes people to become more concerned about their attractiveness and appearance. He recruits a group of 55 freshmen (25 males, 30 females) who are planning to go through fraternity/sorority recruitment on his campus. After they join, he gives them a measure of attractiveness/appearance concern (the Body Concern Scale).
-Refer to Research Study 12.1 above to answer the following question. In addition to measuring the body concern of the participants who joined a fraternity/sorority both immediately before and immediately after they join,Dr.Fletcher measures them for the three weeks before and the three weeks after.This type of design is known as a/an:
A) Nonequivalent control group design
B) Nonequivalent groups interrupted time-series design
C) Interrupted time-series design
D) Stable-baseline design
E) Multiple-baseline design

Question

Quizplus · Accepted Answer

The design described is an interrupted time-series design, as it involves measuring the same group of participants before and after a particular event or intervention (in this case, joining a fraternity/sorority) and comparing their scores over time. The inclusion of a control group would make it a nonequivalent control group design, but no mention of a control group is made in the description of the study. Stable-baseline and multiple-baseline designs involve measuring behavior over an extended period of time, with or without an intervention, and are not applicable to this study.

RESEARCH STUDY 12.1 Dr. Fletcher Is Interested in Whether Joining a Fraternity/sorority Causes