A researcher designs an experiment in which student teachers are randomly assigned to three treatment groups: twice-weekly supervisory visits, weekly supervisory visits, and supervisory visits every two weeks. This is an example of a
A) pretest-posttest control-group design.
B) one-shot case study.
C) one-group pretest-posttest design.
D) one-variable multiple-condition design.

Question

Quizplus · Accepted Answer

This is an example of a one-variable multiple-condition design because the experiment varies the frequency of supervisory visits (the one variable) across three different conditions (twice-weekly, weekly, and every two weeks) to see the effect on student teachers.

A Researcher Designs an Experiment in Which Student Teachers Are