In the case where the experimental groups and the control groups ...

[wenmo]

In the case where the experimental groups and the control groups are not equivalent, which of the following should not be used to address this issue?
 
  a. proceed with the experiment because you can address the issues during your statistical analysis
  b. match the groups on important variables
  c. use comparison groups instead of control groups
  d. match groups on any variables that are significant for the fluctuation in the dependent variable

Question 2

When it is not possible to create groups through randomization, what options do you have for the research design?
 
  a. a classical experiment
  b. nonequivalent groups
  c. surveys
  d. pre- and posttests

[joshbk44]

Answer to Question 1

a

Answer to Question 2

b

[wenmo]

TYSM

[elyse44]

Great answer, keep it coming