Erratum: In the paper by Sella, Tressoldi, Lucangeli & Zorzi (2016), the effect of Group in the ANCOVA for the Semantic subscale (p. 25) was associated with a p-value of.0546, instead of the reported.05, thereby approaching significance. This amendment does not affect the conclusions drawn in the article. We also note that assuming the Student's t-distribution would have been more appropriate than the normal distribution for computing the improvement index for the Mental Calculation scale, because the sample size (only for the latter scale) was below 30. Accordingly, the reported value of 44 would decrease to 43, without affecting the conclusions of the study. Finally, although clearly stated in the published article, we reiterate that Figure 2 (p. 25) shows the median and the 95% limits of the distribution of the improvement indexes obtained using a bootstrap procedure and not the results of the ANCOVAs.

Erratum: Training numerical skills with the adaptive videogame “The Number Race”: A randomized controlled trial on preschoolers (Trends in Neuroscience and Education (2016) 5(1) (20–29) (S2211949316300035) (10.1016/j.tine.2016.02.002))

Tressoldi P.
;
Lucangeli D.
;
Zorzi M.
2017

Abstract

Erratum: In the paper by Sella, Tressoldi, Lucangeli & Zorzi (2016), the effect of Group in the ANCOVA for the Semantic subscale (p. 25) was associated with a p-value of.0546, instead of the reported.05, thereby approaching significance. This amendment does not affect the conclusions drawn in the article. We also note that assuming the Student's t-distribution would have been more appropriate than the normal distribution for computing the improvement index for the Mental Calculation scale, because the sample size (only for the latter scale) was below 30. Accordingly, the reported value of 44 would decrease to 43, without affecting the conclusions of the study. Finally, although clearly stated in the published article, we reiterate that Figure 2 (p. 25) shows the median and the 95% limits of the distribution of the improvement indexes obtained using a bootstrap procedure and not the results of the ANCOVAs.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/3340138
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