This study examines the effect varying models have on student understanding of fractions. The study addressed the question of what students know and understand about fractional concepts through the use of discrete and continuous models. A sample of 54 students in kindergarten and 3rd grade were given an interview pretest, participated in…

This study introduces a new set of weighting procedures for revealing the mediation mechanism in multi-level settings. These methods are illustrated through an investigation of whether the impact of a system-wide policy change on student outcomes is mediated by policy-induced peer composition change. When the policy changed not only…

As the sole math teacher in his middle school, the first author has always worked hard to provide quality mathematical experiences for his students. In an era of accountability defined by standardized test scores, he has also closely monitored his students' performance on such tests. After a few years of hoping that scores would improve, he…

Genetic liability to autism spectrum disorder (ASD) can be expressed in unaffected relatives through subclinical, genetically meaningful traits, or endophenotypes. This study aimed to identify developmental endophenotypes in parents of individuals with ASD by examining parents' childhood academic development over the school-age period. A cohort of…

This 27th edition of the "Annual Condition of Education Report" includes a rich set of information to evaluate the current status of the education system in Iowa. Data in the report provide important information about Iowa's students, teachers and schools from multiple perspectives. It includes information such as demographic…

The 2015 edition of the "Annual Condition of Education Report" includes a rich set of information about the status of Iowa's K-12 education system. The report provides valuable feedback about Iowa's students, educators and school districts across a number of statewide measures. They include changes in student populations and…

The 2014 edition of the "Annual Condition of Education Report" marks the 25th anniversary of the report. Much has changed in the passing quarter century since the 1st edition was released in 1990. Most importantly, the "Condition of Education Report" allows the citizens of Iowa to explore trend data and determine what has…

The 2013 edition of the "Annual Condition of Education Report" provides a rich tapestry of information about Iowa's education system. The data presented in the report examines longitudinal trends about Iowa's students, teachers, and schools from many perspectives. Information such as demographic characteristics, assessment results,…

This report examines the overlap between student test results on the Iowa Test of Basic Skills (ITBS) and the Washington Assessment of Student Learning (WASL). The two tests were compared and contrasted in terms of content and measurement philosophy, and analyses studied the statistical relationship between the ITBS and the WASL. The ITBS assesses…

The effect of the Read Aloud accommodation on the performances of learning disabled in reading (LD-R) and non-learning disabled (non LD) middle school students was studied using selected texts from the Iowa Tests of Basic Skills (ITBS) achievement battery. Science, Usage and Expression, Math Problem Solving and Data Interpretation, and Reading…

The preparation and use of an objective strength analysis report (OSAR) from the Iowa Test of Basic Skills (ITBS) are described. The OSAR was designed to answer two needs: (1) a format which allows the school to easily answer the question "which reading objectives need more emphasis and/or better materials or techniques in order to raise its…

This initial step in establishing a program of educational accountability provides descriptive information to public officials and the general public about Maryland public schools. The Report presents the overall accountability effort of goal formulation and educational assessment on the State, local school system, and individual school levels. In…

Traditionally research into the effects of teacher behaviors on learning outcomes has involved direct observational techniques. This paper departs from tradition and describes the initial development and use of a new instrument measuring student perceptions of numerous key teaching behaviors. (RL)

This initial report required by the Maryland Educational Accountability Act provides descriptive information to public officials and the general public about Maryland public schools. In the Report, the reader will find information about: the nature of the educational accountability effort thus far; the objectives of the Maryland State Department…