Experimenters Use Random Assignment of Participants to Different Groups in Order

question 139

Multiple Choice

Experimenters use random assignment of participants to different groups in order to:

• A) increase the likelihood that the participants in each group knew one another.
• B) increase the likelihood that participants within a group were similar to one another.
• C) reduce the likelihood of any preexisting differences between groups.
• D) ensure that each groups had the same number of participants.