Seven case studies-from Bolivia, Colombia, Indonesia, Mexico, Nicaragua, Taiwan (China), and Turkey-demonstrate the feasibility of conducting rigorous impact evaluations in developing countries using ...

Occupational health researchers regularly conduct evaluative intervention research for which a randomized controlled trial (RCT) may not be the most appropriate design (eg, effects of policy measures, ...

In a randomized complete block design (RCBD), each level of a "treatment" appears once in each block, and each block contains all the treatments. The order of treatments is randomized separately for ...