The most important reason for choosing an ex post facto design ...

[imanialler]

The most important reason for choosing an ex post facto design rather than an experimental design is when
 
  a. random sampling is not possible.
  b. random assignment must be used.
  c. manipulation of the independent variable is not possible.
  d. intact classroom groups must be used.
  e. young children are the subjects in the research.

Question 2

Matching subjects in the experimental and control groups is useful when
 
  a. small samples are to be used.
  b. large differences between the groups on the dependent variable are likely.
  c. random assignment to groups is not possible.
  d. All of these are true.
  e. a and c

[fraziera112]

Answer to Question 1

C

Answer to Question 2

E

[imanialler]

Thank you!

[fraziera112]

Happy to help