The Center on Enhancing Early Learning Outcomes (CEELO) reviewed data on 21 states' principal licensure requirements, conducted structured interviews with experts on principal preparation and professional development in 7 states, and spoke with staff at the National Association of Elementary School Principals and the National Institute for School…

Limitations of using linear, unilevel regression procedures in modeling student achievement are discussed. This study is a part of a broader study that is developing an empirically-based predictive model of variables associated with academic achievement from a multilevel perspective and examining the differences by which parameters are estimated…

In this article, I examine the implications of additive and subtractive conceptions for the education of English language learner (ELL) students. To understand how competing theories regarding the education of ELL students materialize into action, I examine select findings from one district's implementation of Proposition 227. Focusing on the…

A statewide teacher survey was used to obtain data for an investigation of learning in the primary grades in Maryland schools. Teachers in 85 schools in 23 of Maryland's 24 school systems were surveyed. A total of 808, or 97 percent, of the teachers of kindergarten through third grade classes responded. The survey addressed the following topics:…