Program for International Student Assessment (PISA): 2012 Results -Science Literacy: School Poverty Indicator

Science Literacy: School Poverty Indicator

Table S5. Average scores of U.S. 15-year-old public school students on PISA science literacy scale, by percentage of students in enrolled schools eligible for free or reduced-price lunch, based on principals' reports: 2012
Percent of students eligible for free or reduced-price lunch	Average score		*s.e.*
U.S. average	497		*3.8*
Less than 10 percent	556	*	7.0
10 to 24.9 percent	528	*	6.5
25 to 49.9 percent	523	*	5.6
50 to 74.9 percent	483	*	5.0
75 percent or more	442	*	8.1
OECD average	501		*0.5*
* p<.05. Significantly different from both the U.S. and OECD averages at the05 level of statistical significance. NOTE: Scores are reported on a scale from 0 to 1,000. The National School Lunch Program provides free or reduced-price lunch for students meeting certain income guidelines. The percentage of students receiving such lunch is an indicator of the socioeconomic level of families served by the school. Data in this table are based on principals' responses to a question in the school questionnaire that asked the approximate percentage of eligible students in the school during the previous school year. The OECD average is the average of the national percentages of the OECD member countries, with each country weighted equally. Standard error is noted by s.e. Free or reduced-price lunch data are for public schools only. SOURCE: Organization for Economic Cooperation and Development (OECD), Program for International Student Assessment (PISA), 2012.