Effect sizes in the Cohen's d family are often used in education to compare estimates across studies, measures, and sample sizes. For example, effect sizes are used to compare gains in achievement students make over time, either in pre- and post-treatment studies or in the absence of intervention, such as when estimating achievement gaps. However,…

This paper reports the performance of 30 rising seventh-grade girls on a task in which they were asked to order four fractions from least to greatest. Less than three-fifths attained correct answers. The performance gap was widest between students who attended Title I schools and those who did not, the latter being much more likely to attain…

This "Policy Insight" is a supplement to the Western Interstate Commission for Higher Education's (WICHE's) annual "Benchmarks" indicators, which summarize the Western states' progress with improving access to, success in, and financing of higher education. This brief explores one variant for how WICHE states might meet…

This report focuses on the extent to which students who are academically far off track in fourth or eighth grade in Arkansas catch up by eighth or eleventh and twelfth grades. We studied two recent cohorts of Arkansas students whose eighth-grade ACT Explore® scores were more than one standard deviation below the ACT Explore Benchmark scores…

KIPP Delta College Preparatory School (KIPP: DCPS), an open-enrollment charter school, opened in 2002 in Helena, Arkansas. Since its opening, KIPP: DCPS students have consistently outperformed their peers in the Helena/West Helena School district, and moreover, recent test scores suggest that white students and minority students are achieving at…

In this follow-up to "Do High Flyers Maintain Their Altitude? Performance Trends of Top Students," the academic growth of 35,000 elementary and middle school students in 31 states, all of them high achievers within their own schools, were followed over a three-year period. Their achievement scores were matched with their associated…

This report focuses on the extent to which students who are academically far off track in fourth or eighth grade in Kentucky catch up by eighth or eleventh grade. We studied three recent cohorts of Kentucky students whose eighth-grade ACT Explore® scores were more than one standard deviation below the ACT Explore benchmark scores associated with…

This quantitative study examined science interest and achievement of middle school minority females in both traditional science classes and Problem-based Learning (PBL) science classes. The purpose of this study was to determine if there is a significant difference between traditional teaching and the PBL teaching method. The researcher also…