The reduction in anemia through normative innovations (RANI) project: study protocol for a cluster randomized controlled trial in Odisha, India

Table 3 Sample Size Matrix

Study component	Intervention difference	Power	Alpha	Design effect	Required N	Rounded N
Main trial	7% anemia	80%	0.05	2	3936	4000
Cognitive functioning	16% more functioning	80%	0.05	1	288	300

ISSN: 1471-2458