title: Comment on "Math at home adds up to achievement in school".
abstract: Berkowitz et al. (Reports, 9 October 2015, p. 196) described a randomized field experiment testing whether a math app designed to increase parent-child interaction could also bring academic benefits. A reanalysis of the data suggests that this well-designed trial failed to find strong evidence for the efficacy of the intervention. In particular, there was no significant effect of the intervention on math performance.
authors.affiliation: Department of Psychology, Stanford University, Stanford, CA, USA. mcfrank@stanford.edu.
authors.forename: Michael C
authors.initials: MC
authors.lastname: Frank
mesh_terms: D004522:Educational Status; D005260:Female; D006801:Humans; D016901:Intergenerational Relations; D008297:Male; D008433:Mathematics / Q000193:education*; D010287:Parent-Child Relations; D013334:Students / Q000523:psychology*