Department of Maternal and Child Health, University of North Carolina, Chapel Hill, NC 27599, USA.
Child Dev. 2010 Jan-Feb;81(1):368-75. doi: 10.1111/j.1467-8624.2009.01400.x.
Using data from the National Longitudinal Survey of Youth (N = 1,159), this study reexamines the link between maternal reports of television viewing at ages 1 and 3 and attention problems at age 7. This work represents a reanalysis and extension of recent research suggesting young children's television viewing causes subsequent attention problems. The nonlinear specification reveals the association between television watching and attention problems exists-if at all-only at very high levels of viewing. Adding 2 covariates to the regression model eliminated even this modest effect. The earlier findings are not robust. This study also considers whether its own findings are sensitive to unobserved confounding using fixed-effects estimation. In general, it finds no meaningful relation between television viewing and attention problems.
本研究利用全国青年纵向调查（N=1159）的数据，重新考察了母亲报告的 1 岁和 3 岁时的电视观看时间与 7 岁时的注意力问题之间的关系。这项工作是对最近提出的幼儿看电视会导致后续注意力问题的研究的重新分析和扩展。非线性拟合显示，看电视与注意力问题之间的关联——如果存在的话——仅存在于极高的观看水平。向回归模型中添加 2 个协变量甚至消除了这种适度的影响。之前的发现并不稳健。本研究还使用固定效应估计来考虑其自身的发现是否对未观测到的混杂因素敏感。总的来说，它没有发现电视观看与注意力问题之间存在有意义的关系。
