Table 5.

Results of repeated-measures ANOVAs measuring change in vitamin D knowledge across intervention study time-points^a

	Study group			Time			Study group x time
ANOVA	F ( df)	P	η p 2	F ( df )	P	η p 2	F ( df)	P	η p 2
2-way	7.14 (1, 88)	<0.01	0.08	47.29 (1, 88)	<0.001	0.36	32.53 (1, 88)	p  < 0.001	0.27
3-way	6.13 (1, 88)	0.02	0.07	25.52 (2, 176)	<0.001	0.23	17.03 (2,176)	p  < 0.001	0.16

^aSignificant differences (p < 0.05) are indicated in bold. Two-way ANOVA examined changes from time 1 to 2; three-way ANOVA examined changes across times 1, 2 & 3