Does TV Affect Child Cognitive Development?
We investigate whether TV watching at ages 6-7 and 8-9 affects cognitive development measured by math and reading scores at ages 8-9 using a rich childhood longitudinal sample from NLSY79. Dynamic panel data models are estimated to handle the unobserved child-specific factor, endogeneity of TV watch...
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sg-smu-ink.soe_research-20312019-04-27T10:49:14Z Does TV Affect Child Cognitive Development? HUANG, Fali LEE, Myoung-jae We investigate whether TV watching at ages 6-7 and 8-9 affects cognitive development measured by math and reading scores at ages 8-9 using a rich childhood longitudinal sample from NLSY79. Dynamic panel data models are estimated to handle the unobserved child-specific factor, endogeneity of TV watching, and dynamic nature of the causal relation. A special emphasis is put on the last aspect where TV watching affects cognitive development which in turn affects the future TV watching. When this feedback occurs, it is not straightforward to identify and estimate the TV effect. We adopt estimation methods available in the biostatistics literature which can deal with the feedback feature; we also apply the “standard” econometric panel data IV approaches. Overall, for math score at ages 8-9, we find that watching TV for more than two hours per day during ages 6-9 has a negative total effect mostly due to a large negative effect of TV watching at the younger ages 6-7. For reading score, there are evidences that TV watching between 2-4 hours per day has a positive effect whereas the effect is negative outside this range. In both cases, however, the effect magnitudes are economically small. 2007-08-01T07:00:00Z text application/pdf https://ink.library.smu.edu.sg/soe_research/1032 https://ink.library.smu.edu.sg/context/soe_research/article/2031/viewcontent/TvEffect20070921.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Economics eng Institutional Knowledge at Singapore Management University TV watching treatment effect panel data dynamic model Granger causality Behavioral Economics |
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TV watching treatment effect panel data dynamic model Granger causality Behavioral Economics HUANG, Fali LEE, Myoung-jae Does TV Affect Child Cognitive Development? |
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We investigate whether TV watching at ages 6-7 and 8-9 affects cognitive development measured by math and reading scores at ages 8-9 using a rich childhood longitudinal sample from NLSY79. Dynamic panel data models are estimated to handle the unobserved child-specific factor, endogeneity of TV watching, and dynamic nature of the causal relation. A special emphasis is put on the last aspect where TV watching affects cognitive development which in turn affects the future TV watching. When this feedback occurs, it is not straightforward to identify and estimate the TV effect. We adopt estimation methods available in the biostatistics literature which can deal with the feedback feature; we also apply the “standard” econometric panel data IV approaches. Overall, for math score at ages 8-9, we find that watching TV for more than two hours per day during ages 6-9 has a negative total effect mostly due to a large negative effect of TV watching at the younger ages 6-7. For reading score, there are evidences that TV watching between 2-4 hours per day has a positive effect whereas the effect is negative outside this range. In both cases, however, the effect magnitudes are economically small. |
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HUANG, Fali LEE, Myoung-jae |
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HUANG, Fali LEE, Myoung-jae |
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HUANG, Fali |
title |
Does TV Affect Child Cognitive Development? |
title_short |
Does TV Affect Child Cognitive Development? |
title_full |
Does TV Affect Child Cognitive Development? |
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Does TV Affect Child Cognitive Development? |
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Does TV Affect Child Cognitive Development? |
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does tv affect child cognitive development? |
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Institutional Knowledge at Singapore Management University |
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2007 |
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https://ink.library.smu.edu.sg/soe_research/1032 https://ink.library.smu.edu.sg/context/soe_research/article/2031/viewcontent/TvEffect20070921.pdf |
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