Many national science frameworks (e.g., Next Generation Science Standards) argue that developing mathematical modeling competencies is critical for students' deep understanding of science. However, science teachers may be unprepared to assess these competencies. We are addressing this need by developing virtual lab performance assessments that…

The acquisition of early literacy skills prior to school can positively influence later educational outcomes. However, children from culturally and economically disadvantaged backgrounds often lack stimulating educational activities at home. This analysis provides empirical evidence for 31 education systems on the association between parental…

In the context of Phase Four of the National Assessment of Educational Progress (NAEP) Science Attribute Study, this report includes a discussion of item attributes, an overview of the item attributes used in the study, some psychometric characteristics of the blocks analyzed, a general description of the rule-space methodology, the results…

Sex differences in performance of year-11 British students in science are being explored in an ongoing study. Some early results and tentative conclusions are reported. Double award science was introduced in England to improve scientific literacy, to reduce sex imbalances in later science pursuits by females, and to encourage generally greater…

Educational production can be studied by correlating levels of academic achievement with three independent variables: student's family background, student's mental ability, and school quality. To examine family background and school quality, information was gathered from schools in Argentina, Bolivia, Brazil, Colombia, Mexico, Paraguay, and Peru.…

The equating of reasonably parallel forms of College Board Achievement Tests in biology, chemistry, mathematics level II, American history and social studies, and French is discussed. Results of the following five equating methods are compared: (1) Tucker; (2) Levine equally reliable; (3) Levine unequally reliable; (4) frequency estimation…

The role of expert judges in establishing the content validity of the National Teacher Examinations (NTE) was examined in a detailed study. The NTE are used in 22 states for screening applicants to teacher education programs and/or for screening candidates for initial teacher certification. Such extensive use of the NTE has stimulated 35 recent…

Tools used in scaling proficiency scores from the Second International Assessment of Educational Progress (IAEP) are described. The second IAEP study, conducted in 1991, was an international comparative study of the mathematics and science skills of samples of 9- and 13-year-old students from 20 countries. This paper focuses on part of the second…