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Table 5 Results of repeated-measures ANOVAs measuring change in vitamin D knowledge across intervention study time-pointsa

From: A randomized, controlled trial evaluating the efficacy of an online intervention targeting vitamin D intake, knowledge and status among young adults

 

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

  1. 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