Factors Affecting Power
A research design to compare three drugs for the treatment of Alzheimer's disease is described here. For the first two years of the study, researchers will follow the subjects with scans and memory tests.
What do you think?
The data could be analyzed as a between-subjects
design or as a within-subjects
design. What type of analysis would be done for each type of design and how would the choice of designs affect power?
Please answer the questions: