Examining institutional data from seven cohorts of students intending to major in biology across five research-intensive institutions, this work analyzes opportunity gaps -- defined as the difference between the grade received by students from the dominant and nondominant sociodemographic groups in institutions of higher education -- at the…

Expertise in searching and evaluating scientific literature is a requisite skill of trained scientists and science students, yet information literacy instruction varies greatly among institutions and programs. To ensure that science students acquire information literacy skills, robust methods of assessment are needed. Here, we describe a novel…

The purpose of this study was to examine the impact on learning, attitudes, and costs in a redesigned general education undergraduate biology course that implemented web-based virtual labs (VLs) to replace traditional physical labs (PLs). Over an academic year, two new modes of VL instruction were compared to the traditional PL offering: (1) all…

In 2000, the Programme for International Student Assessment (PISA) study was conducted by the Organisation for Economic Co-operation and Development (OECD). It is a worldwide study of 15-year-old students' performance in mathematics, science and reading skills. The study showed relatively poor results for German students' scientific literacy…

Collaborative testing has been shown to improve performance but not always content retention. In this study, we investigated whether collaborative testing could improve both performance and content retention in a large, introductory biology course. Students were semirandomly divided into two groups based on their performances on exam 1. Each group…

Performance in Biology at secondary school level in Kenya remains poor and one reason is the teaching approach adopted by teachers with teacher-centered approaches being pre-dominant. This study sought to determine the effect of cooperative learning approach on mean achievement scores in Biology of secondary school students.…

First year students' academic performance in three Life Science courses (Botany, Zoology and Bioscience) was compared. Pass rates, as well as the means and distributions of final marks were analysed. Of the three components (coursework, practical and theory examinations) contributing to the final mark of each course, students performed best in the…

This study examined comparability of student scores obtained from computerized and paper-and-pencil formats of the large-scale statewide end-of-course (EOC) examinations in the two subject areas of Algebra and Biology. Evidence in support of comparability of computerized and paper-based tests was sought by examining scale scores, item parameter…

Results involving 701 female and 933 male advanced science students in the United States from the Second International Science Study are discussed. Focus was on differences between females and males. Gender differences were found, particularly in opinions regarding science and society, and with respect to general questions about school. (TJH)

The impact of frequency of classroom testing on achievement was studied for nearly 2,000 tenth grade male biology students in Saudi Arabia tested monthly or semimonthly. Students tested more often outperformed others on end-of-semester and delayed recall (three months) tests. (SLD)

The performance of 254 Israeli twelfth graders on multiple-choice tests with positive or negative item stems was studied. For items requiring low cognitive reasoning, performance does not differ, but, for items requiring high cognitive reasoning, the negative mode is more difficult. Implications for test construction are discussed. (SLD)

Information provided by typical and improved conventional classroom achievement tests was compared with information provided by an adaptive test covering the same subject matter. Both tests were administered to over 700 college students in a general biology course. Using the same scoring method, adaptive testing was found to yield substantially…

Data on science achievement, student attitudes and educational practices in the United States and 23 other countries were collected. This data was taken from random samples of the fifth, ninth, and twelfth grade levels. This report card conveys a few of the findings of the Second IEA Science Study regarding the performance of students in the U.S.…