The problem of taking a data set and separating it into subgroups, where the members of each subgroup are more similar to each other than they are to members outside the subgroup, has been extensively studied in science and mathematics education research. Student responses to written questions and multiple-choice tests have been characterised and…

Little is known empirically about intraclass correlations (ICCs) for multisite cluster randomized trial (MSCRT) designs, particularly in science education. In this study, ICCs suitable for science achievement studies using a three-level (students in schools in districts) MSCRT design that block on district are estimated and examined. Estimates of…

Research aim was to reveal peculiarities of the education of social skills among senior high school age students in physical education classes. We hypothesized that after the end of the educational experiment the senior high school age students will have more developed social skills in physical education classes. Participants in the study were 51…

Objective: To quantify food consumption (based on food group classification) during several time periods in a sample of adolescents and to identify potential differences in food patterns between normal-weight and overweight participants. Design: Cross-sectional study. Participants were classified as normal weight and overweight/obese. Dietary…

Based on the schema theory, it has been found that the background knowledge of males and females differs. This difference in background knowledge can affect the students' reading comprehension. In Iran, although boys and girls study in different schools, they follow the same curricula and syllabuses in all the schools. The present article reports…

The purpose of this study was to examine the effect of the asynchronous voice-conferencing technology, "Voice Thread"®, on the anxiety and oral proficiency of high school students in their third year of studying Spanish as a foreign language. In this quasi-experimental study students' foreign language anxiety levels and oral proficiency…

Legislators mandated transition education for students with disabilities to improve their post-school outcomes. Each student with an IEP should have an annual transition plan at or before his or her 16th birthday. IDEA mandated the utilization of age appropriate transition assessment to develop students' post-secondary transition goals based on…

This article reports the results of a study examining the utility of curriculum-based measurement (CBM) in algebra for predicting performance on a state math assessment and informing instructional placement decisions for students in seventh, eighth, and tenth grades. Students completed six Basic Skills algebra probes across different time…

Educational assessment can be a powerful tool in enhancing classroom instruction and student performance. Yet, its effectiveness relies on the beliefs and knowledge of those who apply it on a daily classroom basis. This study explored attitudes, competence, knowledge, and practices of teachers about educational assessment. Participants were 165…

Various policy papers assert that teamwork is an essential skill for the 21st-century workforce. However, outside of organizational psychology research with adult populations, there are few reliable assessments of this construct with suitable validity evidence for test scores. To redress this issue, self-report, situational judgment, and…

Our research objectives focused on monitoring (i) students' activities during experimental teaching phases in an out-of-school gene technology laboratory, and (ii) potential relationships with variables such as work group size and cognitive achievement. Altogether, we videotaped 20 work groups of A-level 12th graders (n = 67) by continuous…

Various policy papers and research studies assert that teamwork is one of the most important skills for students to learn if they are to become meaningful contributors to the 21st century workforce. However, outside of organizational psychology and adult populations, few reliable assessments of this construct exist, with suitable validity evidence…