PPT Slide
1. Identify the independent and dependent variables in this
2. What type of experimental design was used in this study?
3. Construct a set of cell and marginal mean scores that would
be consistent with main and interaction effects predicted by
the investigator. In so doing, assume that any nonzero
difference between mean scores is statistically significant.
4. Based solely on the above description, identify two methods
used in this research to control extraneous variables, and in
each case, identify the extraneous variable(s) controlled.