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. 2014 Apr 17;9:46. doi: 10.1186/1748-5908-9-46

Table 4.

ICC(1), ICC(2), and WABA I results

 
Intraclass correlations
 
WABA I
 
 
  ICC(1) ICC(2) F test a,b Study 1: ηbetween Study 1: ηwithin E-Test c 1/F Test d
Study 1: Individual referenced
0.07
0.44
1.80**
0.40
0.91
0.44
0.55
Study 1: Group referenced
0.08
0.48
2.14**
0.43
0.90
0.48
0.47
Study 2: Individual referenced
0.29
0.66
2.92 **
0.65
0.76
0.86
0.21
Study 2: Group referenced 0.33 0.70 3.37** 0.67 0.74 0.91 0.19

Note: ICC = intraclass correlation coefficient; WABA = within and between analysis **p < .01.

aStudy 1: df(within) = 423 for individual referenced = 426 for group referenced; df(between) = 46.

bStudy 2: df(within) = 133 for individual referenced =129 for group referenced; df(between) = 26.

cE-test for parts significant at 30°.

dA parts condition, in which ηw > ηb requires an inverse F-test (1/F) with df = N – J and J – 1 for the numerator and denominator respectively.