Table 35.	Average hours spent on homework per week and percentage of 9th- through 12th-grade students who did homework outside of school and whose parents checked that homework was done, by frequency of doing homework and race/ethnicity: 2007

Race/ethnicity	Average hours spent on homework per week by students who did homework outside of school		Percentage distribution of students who do homework outside of school by how frequently they do homework								Percentage of students whose parents1 check that homework is done
			Less than once per week		1 to 2 days per week		3 to 4 days per week		5 or more days per week
Total	6.8		5.4		14.8		38.0		41.9		64.6
White	6.8		4.2		12.9		38.6		44.3		57.2
Black	6.3		‡		20.1		41.0		29.7		83.1
Hispanic	6.4		5.9		17.7		36.6		39.9		75.6
Asian	10.3		#		13.8	!	18.5	!	67.7		59.0
Native Hawaiian/Pacific Islander	‡		‡		‡		‡		‡		‡
American Indian/Alaska Native	‡		‡		‡		‡		‡		‡
Two or more races	7.1		‡		10.5		32.9		50.5		65.9

# Rounds to zero.

! Interpret data with caution. The coefficient of variation (CV) for this estimate is 30 percent or greater.

‡ Reporting standards not met. Either there are too few cases or the coefficient of variation (CV) is 50 percent or greater.

1 Refers to one or more parent or other household adult.

NOTE: Data are based on the responses of the parent most knowledgeable about the student's education. Data exclude students who did not do homework outside of school; in 2007, parents reported that about 7 percent of 9th- through 12th-grade students did not do homework outside of school. Total includes other racial/ethnic groups not separately shown. Race categories exclude persons of Hispanic ethnicity. Detail may not sum to due to rounding.

SOURCE: U.S. Department of Education, National Center for Education Statistics, Parent and Family Involvement in Education Survey of the National Household Education Surveys Program (PFI-NHES), 2007.