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Table I1. Ninth-grade GPA for 2009 ninth-graders, by hours spent playing video games on a typical school day in ninth grade (HSLS:09): 2009

 
Ninth-grade grade point average (GPA)
Hours spent playing video games on typical school day 0.00 - 0.50   0.51 - 1.00   1.01 - 1.50   1.51 - 2.00   2.01 - 2.50   2.51 - 3.00   3.01 - 3.51   3.51 - 4.00
Total  1.7 3.2 7.2 11.8 15.9 20.3 20.1 19.9  
                                 
Less than 1 hour 1.4   2.8   5.8   10.5   15.2   19.0   21.8   23.6  
1 to 2 hours 1.5 ! 2.5   7.6   14.1   18.2   21.6   18.6   16.1  
2 to 3 hours 2.5 ! 4.4 ! 9.7   13.4   14.0   25.5   16.0   14.5  
3 to 4 hours 4.2 ! 3.1   12.4   11.2   16.3   21.5   19.0   12.1  
4 to 5 hours   5.7 ! 11.0 ! 11.6   18.3   28.1   13.8   9.3  
5 or more hours 2.3 ! 7.6   12.6   17.5   17.5   19.6   14.8   8.0  
                                 
! Interpret data with caution. Estimate is unstable because the standard error represents more than 30 percent of the estimate.
‡ Reporting standards are not met.
NOTE: W4W1STU weight was used for this crosstabulation. GPA was calculated from all courses reported on ninth-graders' transcripts.
SOURCE: U.S. Department of Education, National Center for Education Statistics, High School Longitudinal Study of 2009 (HSLS:09), Second Follow-up.