| What
assumption must be considered before using a crossover study
design? |
 | The
drug of interest will not be administered until 3 weeks after
the first cycle. |
 |
The drug of interest used in the first cycle will leave a
marginal effect during the second cycle. |
 |
The drug of interest used in the first cycle will not affect
the second cycle. |
 |
The drug of interest used during the first cycle will affect
the second cycle. |