Skip to main content

Table 7 Raven’s tests: standardised detectable differences and equivalent levels for different designs

From: Evaluation of alternative school feeding models on nutrition, education, agriculture and other social outcomes in Ghana: rationale, randomised design and baseline data

  Children aged 6 to 14 (in SDs) Equivalent level
30 clusters 0.43 2.5
60 clusters 0.30 1.8
120 clusters 0.21 1.2
  1. SD standard deviation