Program for International Student Assessment (PISA): 2015 Results - Science Literacy: School Poverty Indicator

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Science Literacy: School Poverty Indicator

Average scores

Table S8. Average scores of U.S. 15-year-old public school students on the PISA science literacy scale, by percentage of students in enrolled schools eligible for free or reduced-price lunch, based on principals' reports: 2015
Percent of students eligible for free or reduced-price lunch	Average score		*s.e.*
U.S. average	496		*3.2*
Less than 10 percent	553	*	10.2
10 to 24.9 percent	546	*	5.7
25 to 49.9 percent	518	*	5.0
50 to 74.9 percent	482	*	4.1
75 percent or more	446	*	6.0
OECD average	493		*0.4*

* p<.05. Significantly different from both the U.S. and OECD averages at the .05 level of statistical significance.
** p<.05. Significantly different from the OECD average at the .05 level of statistical significance.
*** p<.05. Significantly different from the U.S. average at the .05 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 eligible for this program 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), 2015.