The scope of the study did not permit collection of ExCET scores for individual preservice teachers. However, ExCET results for individual universities were available from state computer files. Due to transition from traditional teacher preparation programs to restructured CPDT programs, scores available from CPDT universities included an unknown number of students who were still in traditional teacher preparation. One should note that this approach provided a conservative estimate of performance of CPDT students, since the inclusion of non-CPDT students in the CPDT group would restrict measurement of any potential superior performance by CPDT students. There was no immediate explanation for differences in the estimated patterns of ExCET performance between CPDT and non-CPDT groups.
More definitive conclusions depend upon in-depth investigation.