Describe a situation (real or imagined) in which a hypothesis can be tested either experimentally OR nonexperimentally; contrast the two approaches in this situation.  Which would be better and why?  

2. Describe a situation (real or imagined) in which a hypothesis can be tested either through a longitudinal study OR a cross-sectional study; contrast the two approaches in this situation.  Which would be better and why?  


Thanks all in advance!!!!!!!!!!!!