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Table 3 Test-retest reliability with means and 95% confidence interval of PERF-FIT variables at Time 1 and 2. Results of the paired samples t-test with bootstrapping (Mean difference between time 1 and 2 with bias, standard error, corrected 95% confidence intervals of the mean difference, t- and p-values and Cohen’s d effect size), results of the ANOVA (F and p-values of the comparison of the reliability results between the three countries)

From: Inter-rater reliability and test-retest reliability of the Performance and Fitness (PERF-FIT) test battery for children: a test for motor skill related fitness

PERF-FIT items

Time 1 Mean

95% CI Lower

95% CI Upper

Time 2 Mean

95% CI Lower

95% CI Upper

Mean Difference

Bias

Std. Error

BCa 95% CI Lower

BCa 95% CI Upper

t-value

p-value

Effect size

F-value

p-value

Item 1 Running (s)

7.14

6.86

7.43

7.22

6.91

7.53

−0.08

0.00

0.12

−0.32

0.15

−0.69

0.50

−0.06

0.84

0.44

Item 2 Stepping (s)

14.19

13.54

14.84

13.29

12.70

13.87

0.90

0.00

0.24

0.44

1.37

3.77

0.00

0.34

2.50

0.09

Item 3 Side jump (#)

25.26

23.50

26.93

28.57

26.58

30.51

−3.31

0.00

0.44

−4.18

−2.46

−7.50

0.00

−0.41

0.01

0.99

Item 4 Long jump (cm)

120.14

114.03

125.87

120.57

115.60

125.53

−0.43

− 0.04

1.73

−3.78

2.90

−0.25

0.81

−0.02

0.70

0.50

Item 5 Overhand (cm)

212.19

198.86

226.06

212.90

214.29

199.50

−0.71

−0.02

3.17

−7.26

5.46

−0.22

0.83

−0.01

4.48

0.02

Item 6 Throw and catch (max 50#)

36.40

32.99

39.51

38.22

35.06

41.14

−1.82

−0.02

0.62

−3.04

−0.67

−2.93

0.00

−0.13

1.21

0.30

Item 7 Bounce and catch (max 50#)

39.03

35.75

41.83

43.11

40.39

45.31

−4.08

0.00

0.67

−5.52

−2.78

−6.08

0.00

−0.33

1.58

0.21

Item 8 Jump (max 20#)

19.08

18.64

19.44

19.61

19.35

19.82

−0.53

0.00

0.19

−0.93

−0.15

−2.74

0.01

−0.11

2.21

0.12

Item 9a Hop Right (max 20#)

14.96

13.40

16.31

16.01

14.75

17.21

−1.06

0.00

0.36

−1.78

−0.35

−2.92

0.01

−0.11

0.47

0.63

Item 9b Hop Left (max 20#)

13.89

12.17

15.43

14.61

13.06

16.10

−0.72

0.00

0.46

−1.65

0.15

−1.56

0.13

−0.17

0.10

0.91

Item 10a Static balance (max 60s) $

54.85

51.38

57.80

55.83

52.42

58.67

−0.98

0.01

1.02

−2.06

0.93

−0.96

0.35

−0.09

0.40

0.53

Item 10b Dynamic balance (max 32#)

26.18

24.54

27.54

26.63

25.32

27.82

−0.44

0.01

0.45

−1.35

0.46

−0.98

0.35

−0.04

2.59

0.08

  1. Bootstrap results are based on 5000 bootstrap samples; CI Confidence Interval, BCa Bias Corrected and accelerated bootstrap; $: Data from Ghana and the Netherlands; s: item measured in seconds; cm: item measured in centimeters; #: item measured in number