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Pub Date: |
2005-00-00 |
Pub Type(s): |
Journal Articles; Reports - Evaluative |
Peer Reviewed: |
Yes |
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Descriptors:
Small Classes; Grade 3; Resource Allocation; Teacher Salaries; Academic Achievement; Class Size; Correlation; Elementary Schools; School Districts; Educational Policy; Student Characteristics; Minority Groups; Gender Differences; Socioeconomic Influences
Abstract:
The effects of class size on academic achievement have been studied for decades. Although the results of small-scale, randomized experiments and large-scale, econometric studies point to positive effects of small classes, some scholars see the evidence as ambiguous. Recent analyses from a 4-year, large-scale, randomized experiment on the effects of class size (Project STAR in Tennessee) provide evidence that small classes in the early grades lead to increased academic achievement. A major question is whether these benefits of small classes are uniformly distributed across schools and districts. The analyses reported here suggest that class size effects at the 3rd grade vary across districts and that the variation in effects is linked to average teacher salaries in those districts. The question of how to allocate resources to most effectively further the aims of educational systems is one of the enduring questions facing educational researchers and policymakers. Among the most fundamental allocation decisions is the decision of how to assign instructional staff to classes. This includes the decision of how large classes should be and whether ancillary instructional staff, such as classroom aides, should be used. Manipulating class size is a policy option that is gaining increasing attention throughout the nation. In the last two decades many states have adopted policies that reduce class sizes with the goal of improving achievement, and class size reduction often is included in state and local education initiatives. Although decisions about resource allocation (and class size in particular) are made in every educational system, there is serious debate about whether these allocation decisions influence academic achievement and other desired outcomes of education. This research investigates whether assignment to small classes affects academic achievement and, if so, how those effects are distributed across schools with different social compositions and teacher characteristics. The variable of local district teacher salary and its effects is also investigated. (Contains 2 tables and 13 footnotes.)
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Pub Date: |
2004-11-01 |
Pub Type(s): |
Journal Articles |
Peer Reviewed: |
Yes |
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Descriptors:
Social Distribution; Outcomes of Education; Minority Groups; Educational Objectives; Demography; Disadvantaged; Class Size; Small Classes
Abstract:
Recent research from randomized experiments on class size points to positive effects of small classes that persist for several years, but the evidence about the social distribution of effects is less clear. Some scholars have contended that the immediate effects of small classes are larger for minorities and for disadvantaged persons (e.g., J. D. Finn & C. M. Achilles, 1990). Those claims have led to policies of class size reduction specifically to reduce inequality in educational outcomes. The authors used data from a 5-year follow-up to Project STAR to investigate whether differential effects of small classes on achievement for minority students persist. A repeated measures analysis suggested that there was a statistically significant, positive differential lasting benefit of 4 years for minorities enrolled in small classes in reading, and a negative differential lasting benefit for girls enrolled in small classes in mathematics over 5 years following the experiment. Thus, it appears that the lasting benefits of 4 years of small classes may reduce racial and ethnic inequality in reading and gender inequality in mathematics.Key words: minority students, Project STAR, reading and mathematics, small class size
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Pub Date: |
2004-00-00 |
Pub Type(s): |
Journal Articles; Reports - Evaluative |
Peer Reviewed: |
Yes |
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Descriptors:
Program Effectiveness; Teaching Experience; Achievement Gains; Teacher Effectiveness; Academic Achievement; Mathematics Achievement; Teacher Influence; Reading Achievement; Mathematics Achievement; Socioeconomic Status
Abstract:
It is widely accepted that teachers differ in their effectiveness, yet the empirical evidence regarding teacher effectiveness is weak. The existing evidence is mainly drawn from econometric studies that use covariates to attempt to control for selection effects that might bias results. We use data from a four-year experiment in which teachers and students were randomly assigned to classes to estimate teacher effects on student achievement. Teacher effects are estimated as between-teacher (but within school) variance components of achievement status and residualized achievement gains. Our estimates of teacher effects on achievement gains are similar in magnitude to those of previous econometric studies, but we find larger effects on mathematics achievement than on reading achievement. The estimated relation of teacher experience with student achievement gains is substantial, but is statistically significant only for 2nd-grade reading and 3rd-grade mathematics achievement. We also find much larger teacher effect variance in low socioeconomic status (SES) schools than in high SES schools.
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