Advances in statistics provide new methods for analyzing practice data. These advances include person-centered methods (PCMs) that identify subgroups of research participants with similar characteristics. PCMs derive from a frame of reference that is similar to the risk factor perspective in practice. In practice, the delivery of services is often…

We investigated the relation between children's numerical-magnitude representations and their memory for numbers. Results of three experiments indicated that the more linear children's magnitude representations were, the more closely their memory of the numbers approximated the numbers presented. This relation was present for preschoolers and…

In this paper we examine the research literature on teacher performance pay. Evidence clearly suggests an upsurge of interest in many states and school districts, however, expanded use of merit pay has been controversial. We briefly review the history of teacher pay policy in the U.S. and earlier cycles of interest in merit or performance-based…