Question: A researcher decides to test her hypothesis that some toys are more fun to play with than others, so she decides to compare fun toys or blocks with "un-fun" toys or stuffed animals. She is also interested in seeing whether a gender difference exists, so she adds gender as an independent variable.
1) What type of research design is required?
2) Diagram it.
3) If 20 subjects are required per cell, how many subjects are required overall for this study?