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Impacts of Comprehensive Teacher Induction: Results From the First Year of a Randomized Controlled Study

NCEE 2009-4034
October 2008


Table 5.  Impacts on Classroom Practices and Student Achievement, District Stayers Only
 
Treatment Control Difference
Outcome Effect Size p-value
Classroom Practices (Average Score on a 5-Point Scale)
Implementation of literacy lesson 2.7 2.7 0.0 0.02 0.814
Content of literacy lesson  2.4 2.4 0.0 -0.05 0.586
Classroom culture 3.1 3.1 0.0 0.05 0.613
Unweighted Sample Size (Teachers) 281 236 517    
Unweighted Sample Size (Schools) 153 141 294    
Student Achievement (Effect Size)
Reading scores (all grades) 0.00 0.01 -0.01 -0.01 0.785
Unweighted Sample Size (Students) 2,100 1,750 3,850    
Unweighted Sample Size (Teachers) 122 99 221    
Unweighted Sample Size (Schools) 94 73 167    
Math scores (all grades) -0.04 0.04 -0.08* -0.08 0.037
Unweighted Sample Size (Students) 1,874 1,647 3,521    
Unweighted Sample Size (Teachers) 113 95 208    
Unweighted Sample Size (Schools) 87 70 157    
Source: MPR classroom observations conducted in spring 2006; MPR analysis of data from 2004-2005 and 2005-2006 provided by participating school districts; MPR Teacher Background Survey administered in 2005-2006 and Mobility Survey administered in 2006-2007 to all study teachers.
Note: Classroom practice means are weighted and regression-adjusted using ordinary least squares to account for differences in baseline characteristics and the study design. Student achievement means are regression-adjusted using a least squares model to account for baseline characteristics and clustering of students within schools. The test scores are expressed as zscores, with mean of 0 and standard deviation of 1 within each district and grade.
*Significantly different from zero at the 0.05 level, two-tailed test.