Beverly Is Conducting a Study on Child Development

Multiple Choice

Beverly is conducting a study on child development.To observe the parent child interactions of interest, her independent variable will have four levels.She could have the same set of participants complete the experiment by coming to campus on four separate occasions.However, she decides to use a between subjects.From the details given about the study, which of the following advantages best describes why Beverly selected a between subjects design?

A) no attrition
B) little fatigue
C) the use of multiple measures
D) no order effects