Which pair of variables is there most likely to be a relationship ...

[wenmo]

Which pair of variables is there most likely to be a relationship that could be described as causal?
 
  A) Degree of physical activity and heart rate
  B) Stress and coping style
  C) Age and health beliefs
  D) Parity and postpartum depression

Question 2

All of the following approaches involve the use of previously collected data except:
 
  A) Secondary analysis
  B) Needs assessment
  C) Meta-analysis
  D) Clinical trials

[InfiniteSteez]

Answer to Question 1

A

Answer to Question 2

D

[wenmo]

YES! Correct, THANKS for helping me on my review

[daiying98]

Thanks for the timely response, appreciate it