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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: J Am Diet Assoc. 2009 Jan;109(1):36–44. doi: 10.1016/j.jada.2008.10.006

TABLE 4.

Efficacy of Intervention to Promote Fruit and Vegetable Consumption based on Servings Eaten at School Lunch—as determined by two methods of data collection: Observation and Recall

School plus Home Intervention School only Intervention Control χ2a p-value
Mean (SD)
Fruit Servingsb
 Observation 0.29 (.45) 0.24 (.36) 0.13 (.27) 12.39 0.0020
 Recall 0.29 (.42) 0.26 (.37) 0.09 (.23) 31.29 <0.0001
Vegetable Servingsb
 Observation 0.48 (.63) 0.46 (.69) 0.54 (.54) 5.85 0.0535
 Recall 0.55 (.62) 0.60 (.83) 0.71 (.76) 6.31 0.0427
Fruit & Vegetable Servingsb
 Observation 0.76 (.75) 0.70 (.74) 0.67 (.63) 0.81 0.6654
 Recall 0.84 (.71) 0.86 (.86) 0.80 (.82) 0.85 0.6539
a

Kruskal-Wallis test

b

servings are mean for group based on 5-a-day inclusion criteria using FDA serving sizes