Fred systematically observes how changes in lighting affect his ...

[JGIBBSON]

Fred systematically observes how changes in lighting affect his rat's lever-pressing behavior. Which research design best characterizes Fred's investigation?
 
  a. cross-lagged panel design
  b. single-case experimental design
  c. nonequivalent groups design
  d. correlational design

Question 2

To determine whether a new anti-drug campaign has had an impact on students' usage of drugs, an educator compares students' drug usage during the five weeks before and the five weeks after the anti-drug campaign.
 
  Which quasi-experimental design characterizes the educator's investigation?
   a. single-case experimental design
   b. cross-lagged panel design
   c. time-series design
   d. nonequivalent-groups design

[yifu223]

Answer to Question 1

b

Answer to Question 2

c

[JGIBBSON]

Thank you

[yifu223]

No problem