Twelfth-graders who reported having a class discussion at least once a week (295) scored higher than those who reported having a class discussion once or twice a month (281), a few times a year (271), or never or hardly ever (266).
NOTE: The NAEP reading scale ranges from 0 to 500. Some apparent differences between estimates may not be statistically significant. See complete data.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Reading Assessment.