Aux Etats-unis, le très sérieux journal scientifique « Archives of Pediatrics & Adolescent Medicine » vient de publier un article sur la mesure des effets de la télévision sur la réussite scolaire. Parmi les principales conclusions :
1. «Ne laissez pas des enfants de moins de deux ans regarder la télévision, cela a des effets néfastes sur leur développement cognitif et freine leurs apprentissages»

2. «Un adolescent qui regarde la télévision plus de trois heures par jour divise par deux ses chances de suivre des études supérieures, par rapport à ceux qui la regardent moins d’une heure.»

>>Children’s Television Viewing and Cognitive Outcomes
[Frederick J. Zimmerman, PhD; Dimitri A. Christakis, MD, MPH]

Results  Before age 3 years, the children in this study watched an average of 2.2 hours per day; at ages 3 to 5 years, the daily average was 3.3 hours.

Adjusted for the covariates mentioned earlier, each hour of average daily television viewing before age 3 years was associated with deleterious effects on the Peabody Individual Achievement Test Reading Recognition Scale of 0.31 points (95% confidence interval [CI], –0.61 to –0.01 points), on the Peabody Individual Achievement Test Reading Comprehension Scale of 0.58 points (95% CI, –0.94 to –0.21 points), and on the Memory for Digit Span assessment from the Wechsler Intelligence Scales for Children of –0.10 points (95% CI, –0.20 to 0 points). For the Reading Recognition Scale score only, a beneficial effect of television at ages 3 to 5 years was identified, with each hour associated with a 0.51-point improvement in the score (95% CI, 0.17 to 0.85 points).

Conclusions  There are modest adverse effects of television viewing before age 3 years on the subsequent cognitive development of children. These results suggest that greater adherence to the American Academy of Pediatrics guidelines that children younger than 2 years not watch television is warranted.

http://archpedi.ama-assn.org/cgi/content/short/159/7/619