Dr. Jennings has developed an intervention to help people stop ...

[j.rubin]

Dr. Jennings has developed an intervention to help people stop smoking, and he wants to conduct a study to test it. In his design, he first collects baseline measurements of how much his study participants smoke at work, at home, and while socializing. Then, for one week he instructs participants to use the interventions he's developed only at work; during the next week he instructs participants to use these techniques at both work and home; and during the next he instructs participants to use these techniques at work, at home, and while socializing with friends. All along Dr. Jennings continues to track how much people have smoked in each situation. This study is an example of
 
  a. an ABAB design.
  b. an epidemiological design.
  c. a multiple baseline design.
  d. a single-case design.

Question 2

The ABAB design
 
  a. is an example of a single-case design with alternating treatment and no-treatment phases.
  b. involves measuring participants on two separate variables of interest.
  c. has been recognized as the most externally valid form of clinical research.
  d. none of the above

[k2629]

Answer to Question 1

C

Answer to Question 2

A

[j.rubin]

Thank you!

[k2629]

Happy to help