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An extra hour of TV beyond recommendations diminishes toddlers' kindergarten chances

Date:
August 7, 2013
Source:
University of Montreal
Summary:
Every hourly increase in daily television watching at 29 months of age is associated with diminished vocabulary and math skills, classroom engagement (which is largely determined by attention skills), victimization by classmates, and physical prowess at kindergarten.

Every hourly increase in daily television watching at 29 months of age is associated with diminished vocabulary and math skills, classroom engagement (which is largely determined by attention skills), victimization by classmates, and physical prowess at kindergarten.
Credit: Patric Martel / Fotolia

Every hourly increase in daily television watching at 29 months of age is associated with diminished vocabulary and math skills, classroom engagement (which is largely determined by attention skills), victimization by classmates, and physical prowess at kindergarten, according to Professor Linda Pagani of the University of Montreal and the CHU Sainte-Justine children's hospital.

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"This is the first time ever that a stringently controlled associational birth cohort study has looked at and found a relationship between too much toddler screen time and kindergarten risks for poor motor skills and psychosocial difficulties, like victimization by classmates," Pagani said. "These findings suggest the need for better parental awareness and compliance with existing viewing recommendations put forth by the American Academy of Pediatrics. The AAP discourages watching television during infancy and recommends not more than two hours per day beyond age 2. It seems that every extra hour beyond that has a remarkably negative influence."

Pagani conducted the study to discover the effect of television viewing prior to kindergarten. He said, "Much of the research on school readiness has focused on how kindergarten characteristics predict later success. Kindergarten entry characteristics predict long-term psycho-social adjustment and economic characteristics like income and academic attainment. Being innovative, my focus has been to examine what predicts kindergarten entry characteristics. Adding further originality, I also wanted to focus on neglected yet crucial aspects of school readiness such as motor skills, which predict later physical activity and reading skills, likelihood of being "picked-on," which predict social difficulties, and skills at linked to doing what you are supposed to be doing when having been given instructions, which are in turn linked to attention systems that are regulated by the brain's frontal lobe development."

991 girls and 1006 boys in Quebec whose parents reported their television viewing behaviour as part of the Quebec Longitudinal Study of Child Development.

One extra hour of TV

Pagani noted that the standard deviation is a commonly used statistic tool that tells us what is within a normal range compared to the average. One standard deviation from the average daily amount of television viewed by the toddlers in this sample (105 minutes) is 72 minutes. Some of the children who participated in the study were two or even three standard deviations away from the average, and their kindergarten indicators were correspondingly worse than those who were one standard deviation away.

This study only looks at the most common form of screen time, which is in the home. However, it may be an underestimate because many child care settings use television as an activity during care giving.

Pagani said that "because of kindergarten's power to predict future productivity, the identification of modifiable factors that foretell not being ready for the transition to formal schooling represents an important goal for a productive society. By statistical standards, the results show highly controlled modest associations, yet these are net effects which suggest a developmental course which could ultimately compromise achievement, social relations, physical prowess, and preferences and habits toward a healthy lifestyle."


Story Source:

The above story is based on materials provided by University of Montreal. Note: Materials may be edited for content and length.


Journal Reference:

  1. Linda S. Pagani, Caroline Fitzpatrick, Tracie A. Barnett. Early childhood television viewing and kindergarten entry readiness. Pediatric Research, 2013; DOI: 10.1038/pr.2013.105

Cite This Page:

University of Montreal. "An extra hour of TV beyond recommendations diminishes toddlers' kindergarten chances." ScienceDaily. ScienceDaily, 7 August 2013. <www.sciencedaily.com/releases/2013/08/130807205042.htm>.
University of Montreal. (2013, August 7). An extra hour of TV beyond recommendations diminishes toddlers' kindergarten chances. ScienceDaily. Retrieved March 3, 2015 from www.sciencedaily.com/releases/2013/08/130807205042.htm
University of Montreal. "An extra hour of TV beyond recommendations diminishes toddlers' kindergarten chances." ScienceDaily. www.sciencedaily.com/releases/2013/08/130807205042.htm (accessed March 3, 2015).

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