|
,,, |
 |
 |
 |
 |
 |
 |
 |
 |
Source: CSR Research Consortium. Class Size Reduction in California: Early Evaluation Findings, 1996-1998, Technical Report, June 1999, pg xix,
Figure 7
Figure 7
So What?
1) The CSR Research Consortium is made up of the American Institutes for Research (AIR), RAND, Policy Analysis for California
Education (PACE), WestEd, and EdSource, and was contracted by the California Department of Education to evaluate the
implementation and impact of California's class size reduction initiative that began in July 1996. The study concluded in
September 2002.
2) Reduced size classes were less than 20 students, whereas non-reduced classes averaged 29 students.
3) CSR collected data from California schools and evaluated how reduced size classes affected many aspects of the education
system in California.
4) The Stanford Achievement Test version 9 (SAT-9) results were used to evaluate student performance in various subjects.
5) While generally California students' scores improved during the study period, CSR found that only a small improvement can
be attributed to reduced class size.
6) The largest improvement was in Language scores, where on average 3% more students in reduced size classes achieved at
the 50th national percentile level vs. students not in reduced size classes.
7) The smallest improvement was in Spelling scores, where on average 0.6% more students in reduced size classes achieved at
the 50% national percentile level vs. students not in reduced size classes.
1) The CSR Research Consortium is made up of the American Institutes for Research (AIR), RAND, Policy Analysis for California
Education (PACE), WestEd, and EdSource, and was contracted by the California Department of Education to evaluate the
implementation and impact of California's class size reduction initiative that began in July 1996. The study concluded in
September 2002.
2) Reduced size classes were less than 20 students, whereas non-reduced classes averaged 29 students.
3) CSR collected data from California schools and evaluated how reduced size classes affected many aspects of the education
system in California.
4) The Stanford Achievement Test version 9 (SAT-9) results were used to evaluate student performance in various subjects.
5) While generally California students' scores improved during the study period, CSR found that only a small improvement can
be attributed to reduced class size.
6) The largest improvement was in Language scores, where on average 3% more students in reduced size classes achieved at
the 50th national percentile level vs. students not in reduced size classes.
7) The smallest improvement was in Spelling scores, where on average 0.6% more students in reduced size classes achieved at
the 50% national percentile level vs. students not in reduced size classes.
Student Academic Performance vs. Class Size
Site Search
Supporting Evidence
w o r t h a t h o u s a n d w o r d s™
