156 Chapter 2 Figure A.5 Forest plot of standardised effect sizes of studies examining ADHD symptoms in youth with ADHD or attentional problems Bikic et al. 2018 Dovis et al. 2015 Rodrigo-Yanguas et al. 2023 Smith et al. 2020 Steiner et al. 2011 van Houdt et al. 2021 Medina et al. 2021 Weerdmeester et al. 2016 Rodrigo-Yanguas et al. 2023 Steiner et al. 2011 van der Oord et al. 2014 van Houdt et al. 2021 Bikic et al. 2017 Shalev et al. 2007 Benzing & Schmidt, 2019 Applied game vs. Active condition Applied game vs. Casual game Applied game vs. Passive condition Active condition vs Casual game(s) Casual game vs Passive condition Cohen's d [95% CI] -0.03 [-0.50, 0.44] 0.11 [-0.40, 0.61] 0.11 [-0.36, 0.58] 0.11 [-0.33, 0.55] -0.58 [-1.48, 0.32] 0.29 [-0.31, 0.89] -0.27 [-1.00, 0.46] 0.23 [-0.24, 0.70] 0.35 [-0.12, 0.83] 0.42 [-0.47, 1.31] 0.58 [-0.07, 1.23] 0.29 [-0.26, 0.83] -0.29 [-1.25, 0.67] 0.56 [-0.11, 1.23] 0.12 [-0.44, 0.67] -1.50 -1.25 -1.00 -0.75 -0.50 -0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 Favours comparison group Favours applied game / active condition ADHD symptoms Notes. Smith et al. (2020) report a Cohen’s d of 0.21 (based on difference between change scores) and Benzing & Schmidt (2019) a Cohen’s d of 0.32. ADHD = attention-deficit/hyperactivity disorder, CI = confidence interval.
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