How could the study be improved? a) use a different treatment ...

[jon_i]

How could the study be improved?
 
  a) use a different treatment to test its effect on maze learning
   b) use different groups of rats given different independent variables
  c) use a different dependent variable
  d) use a double blind placebo treatment method

Question 2

What is the main distinction between the nonequivalent comparison group design and the pretest-posttest control group design?
 
  a. the use of pretesting in the latter
  b. the use of statistical data analysis in the latter c. the random assignment of participants to groups in the latter
  d. more than one independent variable in the latter

[Awesome]

Answer to Question 1

B

Answer to Question 2

A