Although studies examining student understanding of key concepts are common throughout the science education literature, few have examined science concepts linked to conservation or environmental issues such as global warming and alternative energy. How students make sense of these complex concepts has the potential to influence their role as…

Multiple risks are associated with early use of anabolic androgenic steroids, yet public understanding is limited and teen use not uncommon. The present study surveyed 4,231 high school students to understand prevalence of use, association with athletics and other substance use and expectations of drug effects. While overall rates of steroid use…

In this study, relationships were examined between students' perception of their cognition, behavior, environment, and motivation. The purpose of the research study was to explore the extent to which 9th and 10th grade students' perception of environment, cognition, and behavior can predict their motivation in Algebra and Geometry courses. A…

Purpose. The purpose of this replication study was to describe the extent to which seven collaborative behaviors were demonstrated by general education teachers assigned students with disabilities, education specialists, and their administrators in selected California high schools that exceeded the state average pass rate for 10th-grade students…

A great deal of developmental research has relied on self-reports solicited using the "some/other" question format (""Some students" think that...but "other students" think that..."). This article reports tests of the assumptions underlying its use: that it conveys to adolescents that socially undesirable…

The purpose of this study was to discover what teaching strategies were utilized by Special Day Class (SDC) teachers to prepare their 9-12 grade students to pass a course in Algebra 1 and the mathematics section of the California High School Exit Exam (CAHSEE). This study used a mixed methodology involving a quantitative survey and qualitative…

This report examines the results of the field test for the base year of the High School Longitudinal Study of 2009 (HSLS:09). The general purposes of the field test were, in anticipation of the base-year full-scale effort, to test instruments, forms, and procedures; to experiment with different approaches to questionnaire content and survey…

The California High School Exit Examination (CAHSEE) is a graduation requirement that includes passing a two part exam: English-language arts (ELA) and mathematics. Students take the exam for the first time in 10th grade. In 2005-06, the passing rates were about 77% for ELA and 75% for math. This study uses student level data to focus on the…

The "Morbidity and Mortality Weekly Report" ("MMWR") Series is prepared by the Centers for Disease Control and Prevention (CDC). Data in the weekly "MMWR" are provisional, based on weekly reports to CDC by state health departments. This issue of "MMWR" contains the following studies: (1) Youth Risk Behavior…