| Table ES-4. Characteristics of Teachers in Second-Year Teacher Impact Analysis Sample and Mathematics Teachers of Seventh-Grade Students in Eligible Schools in Large Districts |
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|---|---|---|
| Teacher Characteristics | Teachers in Second-Year Impact Analysis Samplea | All Teachers of Seventh-Grade Students in Eligible Schools in Large Districts |
| Standard Certification (percent) | 72.2 | 73.4 |
| Bachelor's Degree (percent) | 100.0 | 100.0 |
| Master's Degree (percent) | 45.6 | 40.7 |
| Mathematics Major (percent) | 18.9 | 29.3 |
| Mathematics-Related Major (percent) | 4.4 | 16.2 |
| Years of Teaching Experience (percent) | ||
| 3 years or fewer | 30.0 | 37.4 |
| 4–10 years | 40.0 | 26.9 |
| 11–20 years | 21.1 | 15.7 |
| More than 20 years | 8.9 | 20.1 |
| Sample Size: N = 92 teachers in second-year impact analysis sample; 10,700 teachers in eligible schools. | ||
| SOURCE: Teacher Survey; 2003–2004 Schools and Staffing Survey (SASS), Public School Teacher Data Files. | ||
| NOTES: a Characteristics of study teachers were measured at time of entry into the study. | ||
| Percentage values for characteristics with multiple categories may not sum to 100 owing to rounding. | ||
| Statistical significance was determined based on t-tests. Two-tailed statistical significance at the p ≤ .05 level is indicated by an asterisk (*). | ||