In this paper, we report on a series of algebra classes with a group of low-income, African American mothers of elementary-aged children who had limited and negative formal experiences with algebra. We drew from United States reform-oriented elementary mathematics curricular materials in the classes. The women initially arrived to the class out of…

Parent-child "everyday" conversations have been suggested as a source of children's early science learning. If such conversations are important, then it would be pertinent to know whether children from different family backgrounds have different experiences talking about science in informal settings. We focus on the relation between…

Facing the ambiguous status of in-school music literacy, this follow-up eight-year study aims to touch on the effects of traditional staff notation (SN) learning on student's intuitive symbolizing behavior and musical perception. Subjects were 47 second-graders attending a religious Jewish school in Israel. One "pre-literate" meeting, in…

This paper describes an exercise that frames the choices made in creating measures of knowledge as problematic--making clear that the difficulties in interpreting the survey response are not limited to opinion items but apply to questions about factual information as well. Ambiguities in question wording and response options can invite multiple…

Authors reviewed the theoretical history of the "motivation" construct, and its utilization within past/current health behavior research. Textbooks and review articles functioned as sources for the theoretical history review. Research published within a 10-year period (1993-2002) in four health promotion journals (all with impact factors greater…

The present paper describes the design, implementation and evaluation of a cryptography module for final-year software engineering students. The emphasis is on implementation architectures and practical cryptanalysis rather than a standard mathematical approach. The competitive continuous assessment process reflects this approach and rewards…

Purpose: To explore the utility of time-interval analysis for documenting the reliability of coding social communication performance of children in classroom settings. Of particular interest was finding a method for determining whether independent observers could reliably judge both occurrence and duration of ongoing behavioral dimensions for…

This manual was written as part of a study entitled "Studying the Cost and Value of Library Services," conducted from fall 1993 through spring 1995. The goal of the study was to address the problem of developing models and methods for studying the cost and value of library and information services in a way that can be pragmatically…

A previously developed method of automatically selecting items for inclusion in a test subject to constraints on item content and statistical properties is applied to real data. Two tests are first assembled by experts in test construction who normally assemble such tests on a routine basis. Using the same pool of items and constraints articulated…

The Adult Education components of the 1991 and 1995 National Household Education Survey (NHES) collected the name and subject matter of a wide range of courses adults had taken in the previous months. Adult education involves a variety of types of courses, whether related to basic skills, equivalency programs, degree programs, or personal…

The National Household Education Survey (NHES) is a data collection system of the National Center for Education Statistics that is designed to provide information about educational issues best addressed through contacting households rather than institutions. In 1995, as in 1991, one of the components of this telephone survey was a study of adult…

This study is a critical evaluation of the roles for coding and scoring of missing responses to multiple-choice items in educational tests. The focus is on tests in which the test-takers have little or no motivation; in such tests omitting and not reaching (as classified by the currently adopted operational rules) is quite frequent. Data from the…

The cognitive effects of self-referencing in math word problems were studied in 100 third, fourth, and fifth graders solving compare-unknown and referent-unknown problems. In general, self-referencing (referring to "you") facilitated encoding processes in solving these problems. Self-referencing appeared to decrease the load on working…

Investigates how coder characteristics such as language skills, political knowledge, coding experience, and coding certainty affected inter-coder and coder-training reliability. Shows that language skills influenced both reliability types. Suggests that cross-national researchers should pay more attention to cross-national assessments of…

Describes a classroom exercise that uses a letter from Max Delbruck to George Beadle to stimulate interest in the mechanics of a nonoverlapping comma-free code. Enables students to participate in the rich history of molecular biology and illustrates to them that scientists and science can be fun. (JRH)