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Table 2 Results for ‘locomotion’-study

From: The significance fallacy in inferential statistics

 

Actual a

‘Significant’ (n = 65)

‘Non-significant’ (n = 68)

(z-value) p-value

Effect size

N

38

60

50

(z =-0.90) p = .37

r = -.08

M group1

712

150

150

  

M group2

676

120

118

  

Mdiff

36

50

10

(z =-2.48) p = .013

r = -.21

SD group1

83

10

5

  

SD group2

95

8

5

  

Cohen’s d

0.79

0.70

0.20

(z =-4.16) p < .001

r = -.36

  1. Note: a The actual study reported a significant effect.