Colin wants to find out how using fins increases swimming speed. If an independent groups design is used, the researcher would manipulate the variable by:
A)randomly requiring half the swimmers to swim without fins and the other half to swim with fins.
B)having all swimmers first swim without fins and then with fins.
C)having half the swimmers first swim without fins and then with fins and having the other half swim first with fins and then without fins.
D)requiring all swimmers to first swim with fins and then without fins.

Question

Quizplus · Accepted Answer

In an independent groups design, participants are divided into separate groups where each group experiences a different condition. Option A correctly describes this by having one group swim with fins and the other without, thus manipulating the independent variable (use of fins) across different groups.

Colin Wants to Find Out How Using Fins Increases Swimming