This study assessed the extent of new teacher turnover from schools, districts, and the public school teaching profession in Illinois. Using data from the Illinois State Board of Education's Teacher Service Record (TSR) and Teacher Certification Information System (TCIS) databases for the period 1986/87 through 2005/06, several cohorts of…

In a previous Illinois Education Research Council (IERC) policy research report, The Distribution of Teacher Quality in Illinois (IERC 2005-1), we introduced the Illinois Teacher Quality Index (TQI). The TQI is a school-level indicator of teacher quality that describes a school's concentration of certain teacher attributes that research suggests…

This study looks at the distribution of all 140,000 teachers in 2002-2003 among Illinois' public schools using five teacher attributes that have been shown in previous research to be related to student performance and for which they were able to obtain data--college competitiveness, years of experience, type of credential, performance on the Basic…