Chirowodza and colleagues' study of the effectiveness of HIV prevention strategies in Zimbabwe; Ellis, Marsh, and Craven's study of peer support programs in Australia; and Janzen and colleagues' study of mental health consumer-run organizations in Ontario, Canada all illustrated:
a. nonequivalent comparison group designs
b. randomized field experiments
c. case studies using qualitative and quantitative methods
d. use of geographic information systems
Question 2
Biglan et al. (1996) studied whether store clerks in eight Oregon towns were willing to sell tobacco products to minors. They measured clerk behavior repeatedly over time, implemented a positive reinforcement intervention at different times in different towns, and usually found a drop in willingness to sell after implementing this intervention. What research methodology did they use?
a. multiple baseline design.
b. interrupted time-series design.
c. nonequivalent comparison group design.
d. both a and b
Cade and colleagues discovered a way to improve athletic performance and prevent salt and water imba
Harland and colleagues discovered the morphogen noggin using expression cloning.
Centers for disease control and prevention guidelines
Field research on free-living primates allows primatologists to study patterns of behavior in the se
Hand exercise devices build strength for injury prevention.
The Dose-Effect Relationship, Showing (A) Drug Potency and (B) Drug Efficacy (Or Effectiveness)