Further Evidence on the Redundancy of the Stanford Achievement Test

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Abstract
The latest revision of the Stanford Achievement Test (SAT), Primary Battery I, consists of seven subtests combined to yield three subtotal scores and one Total Battery score. As part of the ongoing evaluation of an early childhood preschool program, the SAT was administered to second-grade children. It was noted that the results appeared to be similar regardless of which SAT scores were used. After it had been determined that an older version of the SAT, Advanced, had been factor analyzed and found to be highly redundant, a factor analysis was performed on the SAT, I scores of 927 beginning second grade pupils. Results of the analysis showed one common factor with no evidence for the differential utility of the seven subtest or three subtotal scores generated by the SAT.

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