Through a synthesis of test publisher norms and national longitudinal datasets, this study provides new national norms of academic growth in K-12 reading and math that can be used to reinterpret conventional effect sizes in time units. We propose d' a time-indexed effect size metric to estimate how long it would take for an "untreated"…

Despite recent research findings that implicate a long list of student variables that predict reading success or failure, these predictor variables have not been considered in the context of contemporary models of multitiered schoolwide reading intervention. This longitudinal, retrospective study follows 668 kindergarten and first-grade students…

A 2.5-year longitudinal study of the reading scales of the Stanford Achievement Test confirmed the redundancy in its subtests. Strong and stable test-retest reliability coefficients were evident and supported the use of the Stanford total reading scale for longitudinal evaluations. (Author)

This study, focusing on 165 public elementary schools in Hawaii, examined the use of test scores as measures of curriculum effectiveness and identified context and input variables that may impact on these measures of effectiveness. Demographic characteristics and test data on approximately 12,000 third graders were used to obtain 165 school…