The importance of mathematics in early grades has been well established. Two variables that are associated with mathematics achievement are student-teacher relationships (STR) and student type (students identified with a disability and students not identified with a disability). The current study investigated the interaction between perceived STR…

Learning mathematics involves abstract thinking and the use of symbols. To be successful in a mathematics classroom, students must master what symbols mean and how they work. Much prior work has focused on the nature of the external representations used in mathematics instruction, including manipulatives and symbolic representations. In this work,…

This study reports achievement and growth from kindergarten to 4th grade for three groups of English Learners (ELs): (a) ever-ELs; (b) ELs consistently eligible for service; and (c) EL and Special Education dually-identified students. All three EL groups had lower test scores than never-ELs throughout K-4. In math, ELs grew more than never-ELs…

In recent years, children and adolescents have spent more time sitting and engaging in less physical activity than recommended by health authorities. Despite widespread efforts to promote physical activity through school-based programs, the impact of specific intervention programs often remains untested. Therefore, in this pilot study, the effects…

We present experimental evidence on the impact of a multi-faceted program that integrates technology-aided instruction, teacher training and coaching, community ownership, and free primary education. Our setting is three districts in rural Zambia, where we randomly assigned the program across 30 treatment and 33 control schools. The results show…

The purpose of this study was to explore the effectiveness of a universal classroom-based social-emotional learning (SEL) program for first grade students. Forty classrooms from 13 elementary schools across 3 states participated in the trial. Teachers in classrooms randomly assigned to the implementation condition were provided with free access to…

Cognitively Guided Instruction (CGI) is a mathematics instructional strategy that focuses on students using problem-solving strategies to construct their own understanding. Little research has been conducted to help determine what CGI could look like in other subject areas. The purpose of this study was to investigate ways to apply CGI to a…

The purpose of this study was to explore the effectiveness of a universal classroom-based socialemotional learning (SEL) program for first grade students. Forty classrooms from 13 elementary schools across 3 states participated in the trial. Teachers in classrooms randomly assigned to the implementation condition were provided with free access to…

The present study investigated the effects of two emotion trainings on young children's knowledge about jealousy. Participants were 53 kindergarten and first-grade children who were assigned to one of two experimental conditions or a control condition. Children in the first experimental condition (video condition) received discussions about the…

Context: Assessments of baseline equivalency of intervention and control groups, "balance," play a critical role in evaluating educational interventions. The highest What Works Clearinghouse (WWC) of the Institute of Educational Studies (IES) standard for educational studies, "Meets WWC Design Standards Without Reservations,"…

The purpose of this analysis was to assess whether effects of first-grade mathematics intervention apply across the range of at-risk learners' initial skill levels. Students were randomly assigned to control (n = 213) and two variants of intervention (n = 385) designed to improve arithmetic. Of each 30-minute intervention session (48 over 16…

Under the Individuals with Disabilities Education Act, schools are required to provide a free appropriate public education to students with disabilities and show that the students are making academic progress. This study compares within- and across-years academic growth from kindergarten to 4th grade for students who were ever in special education…

Environmental sources of variance in the Italian vocabulary and reading skills of bilingual primary school children from immigrant families (or language minority bilingual children (LMBC)) in Italy were investigated, and the LMBC's skill levels were compared to those of their monolingual classmates. A total of 140 children from the first, third,…

I conducted 2 experiments to analyze the effects of a reading curriculum, "Corrective Reading," which has a sequence that trains derived relations, on the emission of (a) derived relations defined as combinatorial entailment in Relational Frame Theory and (b) metaphors with first grade students. In Experiment 1, I compared the…

Central coherence is the ability to perceive and connect salient information in a context such as a narrative text. Weak central coherence theory describes a detail-focused cognitive style of processing information that overlooks connections. This style of processing is a shortcoming of individuals with autism compared to typically developing…