We present a method for data-based decision making at the school level using student achievement data. We demonstrate the potential of a national assessment database [i.e., the University of Oregon DIBELS Data System (DDS)] to provide comparative levels of school-level data on average student achievement gains. Through the DDS as a data source,…

Lack of psychometric equivalence of oral reading fluency (ORF) passages used within a grade for screening and progress monitoring has recently become an issue with calls for the use of equating methods to ensure equivalence. To investigate the nature of the nonequivalence and to guide the choice of equating method to correct for nonequivalence,…

The purpose of this study was to examine oral reading fluency (ORF) in the context of a large-scale federal reading initiative conducted in low performing, high poverty schools. The objectives were to (a) investigate the relation between ORF and comprehensive reading tests, (b) examine whether slope of performance over time on ORF predicted…