One of the chief weaknesses of an ex post facto procedure is that ...

[RRMR]

One of the chief weaknesses of an ex post facto procedure is that
 
  A) it is only valid in research on children.
  B) no dependent variable can be manipulated.
  C) the researcher is unable to eliminate rival hypotheses.
  D) there are no confounding variables.

Question 2

If a therapist treats a 28-year-old client for depression and attempts to relate the depression causally to the fact that the client failed kindergarten twice, the therapist would be employing
 
  A) an ex post facto research design.
  B) a valid method of establishing causation.
  C) high-constraint research methods.
  D) a manipulation of the independent variable.

[dellikani2015]

Answer to Question 1

Answer: C

Answer to Question 2

Answer: A

[RRMR]

Thank you!

[dellikani2015]

Always glad to help...