Average scale scores and percentages for grade 8 science, by how often students work with others on activities, National School Lunch Program eligibility, 3 categories and jurisdiction: 2011 and 2009
Year	Jurisdiction	National School Lunch Program eligibility, 3 categories	Never or hardly ever		Once or twice a month		Once or twice a week		Every day or almost every day
Year	Jurisdiction	National School Lunch Program eligibility, 3 categories	Average scale score	Percentage	Average scale score	Percentage	Average scale score	Percentage	Average scale score	Percentage
NOTE: The NAEP Science scale ranges from 0 to 300. Detail may not sum to totals because of rounding. Some apparent differences between estimates may not be statistically significant. Analyze results with NAEP Data Explorer. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 and 2011 Science Assessments.
2011	National	Eligible	131	3	136	30	139	47	139	21
2011	National	Not eligible	161	2	163	27	164	48	166	23
2011	National	Information not available	163	5	164	37	165	44	160	14
2009	National	Eligible	128	4	134	32	135	44	134	20
2009	National	Not eligible	156	3	160	29	161	46	163	22
2009	National	Information not available	157	2	163	44	167	45	168	9