The state should have a data system that contributes some of the evidence needed to assess teacher effectiveness.
California does not have a data system with the capacity to provide evidence of teacher effectiveness.
The state has yet to implement any of the three necessary elements of a student- and teacher-level longitudinal data system. It is in the initial stages of implementing a student data system (CALPADS) and is still in the development stage of the unique teacher identifier system (CALTIDES). When these two systems are fully implemented, California will be able to match individual student records with teacher records.
Develop capacity of state data system.
California should ensure that its state data system is able to assign unique student identifiers that connect student data across key databases across years, and assign unique teacher identifiers that enable it to match individual teacher records with individual student records. It should also have the capacity to match student test records from year to year to measure academic growth.
Develop a clear definition of "teacher of record."
A definition of teacher of record is necessary in order to use the student-teacher data link for the purpose of providing value-added evidence of teacher effectiveness. California defines the teacher of record as the person who is primarily responsible for the delivery of instruction, assignment of grades and certification of attendance. However, to ensure that data provided through the state data system are actionable and reliable, California should articulate a more distinct definition of teacher of record and require its consistent use throughout the state.
California recognized the factual accuracy of this analysis. The state added that in March 2006, the California Department of Education, in cooperation with the California Commission on Teacher Credentialing (CTC), was given authorization to begin the development of a California teacher data system, identified as the California Longitudinal Teacher Integrated Data Educational System (CALTIDES), which would have provided the data described above. Unfortunately, recent state budget action has halted the development of the CALTIDES system, so there is no current or projected time frame for either agency to collect these data.