Janet conducts a study and finds that, similar to previous research, students by themselves worked harder than students in groups (a phenomenon known as social loafing). In addition, she found that social loafing could be lessened if the students in the group knew each other well. Janet's study represents
A) replication.
B) replication with extension.
C) lack of control.
D) a synthetic study.

Question

Quizplus · Accepted Answer

Janet's study is a replication with extension because it confirms previous findings (replication) and adds new information about the effect of familiarity among group members on social loafing (extension).

Janet Conducts a Study and Finds That, Similar to Previous