Field experiments in education frequently assign entire groups such as schools to treatment or control conditions. These experiments incorporate sometimes a longitudinal component where for example students are followed over time to assess differences in the average rate of linear change, or rate of acceleration. In this study, we provide methods…

The main goal of this paper is to show how Vasily Davydov's powerful ideas about the nature of mathematical thinking and learning can transform the teaching and learning of additive word problem solving. The name Vasily Davydov is well known in the field of mathematics education in Russia. However, the transformative value of Davydov's theoretical…

Representational competence is a primary contributor to student learning in science, technology, engineering, and math (STEM) disciplines and an optimal target for instruction at all educational levels. We describe the design and implementation of a learning activity that uses concrete models to improve students' representational competence and…

Professional social workers and other mental health providers have for many years been involved in delivering treatment and support services focused on the needs of adults with severe mental illnesses living in the community. While some models have evolved largely through practice experience, others have developed through research paradigms in…

This meta-analysis summarizes results from k = 24 studies comparing either Brief Strategic Family Therapy, Functional Family Therapy, Multidimensional Family Therapy, or Multisystemic Therapy to either treatment-as-usual, an alternative therapy, or a control group in the treatment of adolescent substance abuse and delinquency. Additionally, the…

In an effort to bring rigorous research into the education and social sciences field, the past decade had seen an increase in the advocacy of randomized controlled trials. The argument in favor of using randomized controlled trial is that one can evaluate the impact of an intervention in comparison to a control group with confidence during a…

This paper introduces a realistic 3D model supported virtual environment for environmental education, that highlights the importance of water resource sharing by focusing on the tragedy of the commons dilemma. The proposed virtual environment entails simulations that are controlled by a multi-agent simulation model of a real ecosystem consisting…

Use of multivariate analysis (e.g., multivariate analysis of variance) is common when normally distributed outcomes are collected in intervention research. However, when mixed responses--a set of normal and binary outcomes--are collected, standard multivariate analyses are no longer suitable. While mixed responses are often obtained in…

The transgenic mouse model is useful for studying the causes and potential cures for human genetic diseases. Exposing high school biology students to laboratory experience in developing transgenic animal models is logistically prohibitive. Computer-based simulation, however, offers this potential in addition to advantages of fidelity and reach.…

Too many students in high-poverty, urban communities drop out of high school, and too few graduate prepared for college and careers. Three national organizations--Talent Development Secondary, City Year, and Communities In Schools--have formed Diplomas Now in an effort to transform urban secondary schools so fewer students drop out and more…

Community colleges play a vital role in higher education, enrolling more than one in every three postsecondary students. While the market share of these institutions has grown over the past 50 years, students' success rates remain low. Consequently, community college stakeholders are searching with mounting urgency for strategies that increase…

Safe School Ambassadors (SSA) is a student-centered bystander education program developed by Community Matters to reduce bullying/mistreatment and enhance school climate. A two-part program evaluation was designed to assess the efficacy of the program's logic model and its impact on school-level discipline indicators. For the first part, a…

Our study addresses the scope of phonological advance planning during sentence production using a novel experimental procedure. The production of German sentences in various syntactic formats (SVO, SOV, and VSO) was cued by presenting pictures of the agents of previously memorized agent-action-patient scenes. To tap the phonological activation of…

The main confirmatory research question guiding the design of the impact evaluation is: "What is the impact of Success for All (SFA) on elementary school students' reading achievement, compared to students in non-SFA schools?" An answer to this question will determine the assessment of whether SFA is successful at turning around low-performing…

Recognition memory impairment after selective hippocampal lesions in monkeys is more profound when measured with visual paired-comparison (VPC) than with delayed nonmatching-to-sample (DNMS). To clarify this issue, we assessed the impact of stimuli similarity and encoding duration on the VPC performance in monkeys with hippocampal lesions and…