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Table 4 Estimated effect sizes of included studies

From: The association between attention deficit/hyperactivity disorder and internet addiction: a systematic review and meta-analysis

Study

OR

Cohen’s d

Effect size

Chen, 2015

-

1.86

Large

Cheng, 2014

2.45

-

Small

Cho, 2008

-

1.17

Large

Dalbudak, 2014

-

0.76

Moderate

Dalbudak, 2015

-

0.83

Large

Hyun, 2015

-

1.11

Large

Jelenchick, 2014

2.36

-

Small

Ko, 2008

4.53

-

Large

Ko, 2009

2.02

-

Small

Metin, 2015

-

1.03

Large

Sofia, 2016

2.43

-

Small

Yen, 2007

-

0.83

Large

Yen, 2009

2.84

-

Moderate

Yen, 2016

6.80

-

Large

Yoo, 2004

-

0.69

Moderate

  1. OR odds ratio; Large: Cohen’s d = 0.8, OR = 4.27; Moderate: Cohen’s d = 0.5, OR = 2.48; Small: Cohen’s d = 0.2, OR = 1.44