Fali Huang and Myoung-jae Lee, "Dynamic Treatment Effect Analysis of TV Effects on Child Cognitive Development", Journal of Applied Econometrics, Vol. 25, No. 3, 2010, pp. 392-419. All data are in the file hl-data.txt, which is an ASCII file in DOS format that is zipped in the file hl-data.zip. This file has 66164 lines, 14 for each observation. Missing observations are denoted by a period. Unix/Linux users should use "unzip -a". There is also a Stata file called hl-data.dta, which is zipped in the file hl-data-stata.zip. The list of variables is given below. The data are extracted from the publicly available NLSY79 Child data over 1986-1998 for children surveyed at least three times at ages 4-5, 6-7, and 8-9. There are 4726 observations and 93 variables. List of Variables (in the order they appear in the file) Variable Description Variable Name Child ID C0000100 Mother ID C0000200 PIAT Math at age 8-9 cpiatm PIAT Math at age 6-7 cpiatmy PIAT Math at age 4-5 bpiatm PIAT Reading at age 8-9 cpiatrr PIAT Reading at age 6-7 cpiarry PIAT Reading at age 4-5 bpiatrr (G1) Child Demographic Information race of child: Black or Hispanic racenw sex of child: boy boy birth order of child bthord (G2) Home inputs for 8-9 years olds # of hours/day child sees TV ctvday7 child has 10 or more children books at home cbooksh how often mom reads to child: at least 3 times a week creadh how often child reads for enjoyment: everyday ckreadh family encourages hobbies chobby how often child taken to museum: at least several times a year cmsmh how often child taken to performance: at least several times a year cpfmh how often family get with relatives/friends: at least 2-3 times/month cfamh how often child with dad outdoors: at least once a week cdouth how often child eats with mom & dad: at least once a day ceath parents discuss TV programs with child cdistv (G3) Home inputs for 6-7 years olds # of hours/day child sees TV ctvdayy7 child has 10 or more children books at home cbooksyh how often mom reads to child: at least 3 times a week creadyh how often child reads for enjoyment: everyday ckreadyh family encourages hobbies chobbyy how often child taken to museum: at least several times a year cmsmyh how often child taken to performance: at least several times a year cpfmyh how often family get with relatives/friends: at least 2-3 times/month cfamyh how often child with dad outdoors: at least once a week cdoutyh how often child eats with mom & dad: at least once a day ceatyh parents discuss TV programs with child cdistvy (G4) Home inputs for 4-5 years olds # of hours/weekday child sees TV btvweek # of hours/weekend day child sees TV btvend # of hours TV is on per day btvon how many books does child have: 10 or more books bbooksh how often mother read to child: at least 3 times a week breadh how often child taken to museum: at least several times a year bmuseumh how many magazines does family get: 3 or more bmagzh how often child taken on outing: at least several times a week bouth how often child eats with mom & dad: at least once a day beatallh home observation measurement of the environment variable (HOME) home5 (G5) Family Background mother's AFQT score taken in 1981 AFQT81 mother's highest grade at 1988 hgrademom88 Family salary income in 1988 famsalary88 mother was married in 1988 married88y mother's age at child birth mbthage child is breastfed breastfeed (G6) School Inputs for 8-9 years old hours/week a child spends on math homework cshmath hours/week a child spends on writing homework cshwrit the school is public cstypepub mother's rating of teacher caring - high cstchch mother's rating of principal as leader - high csheadh mother's rating of teacher skill - high cstchsh mother's rating of safety of school - high csafeh mother's rating of school communicating with parents - high cspareh mother's rating of parents participating with school - high csparph mother's rating of school teaching right and wrong - high csmorah mother's rating of school maintaining order - high csordeh mother's rating of teacher caring - middle cstchcm mother's rating of principal as leader - middle csheadm mother's rating of teacher skill - middle cstchsm mother's rating of safety of school - middle csafem mother's rating of school communicating with parents - middle csparem mother's rating of parents participating with school - middle csparpm mother's rating of school teaching right and wrong - middle csmoram mother's rating of school maintaining order - middle csordem (G7) School Inputs for 6-7 years old hours/week a child spends on math homework cshmathy hours/week a child spends on writing homework cshwrity the school is public cstypeypub mother's rating of teacher caring - high cstchcyh mother's rating of principal as leader - high csheadyh mother's rating of teacher skill - high cstchsyh mother's rating of safety of school - high csafeyh mother's rating of school communicating with parents - high cspareyh mother's rating of parents participating with school - high csparpyh mother's rating of school teaching right and wrong - high csmorayh mother's rating of school maintaining order - high csordeyh mother's rating of teacher caring - middle cstchcym mother's rating of principal as leader - middle csheadym mother's rating of teacher skill - middle cstchsym mother's rating of safety of school - middle csafeym mother's rating of school communicating with parents - middle cspareym mother's rating of parents participating with school - middle csparpym mother's rating of school teaching right and wrong - middle csmoraym mother's rating of school maintaining order - middle csordeym