Statistical mediation allows researchers to investigate potential causal effects of experimental manipulations through intervening variables. It is a powerful tool for assessing the presence and strength of postulated causal mechanisms. Although mediation is used in certain areas of psychology, it is rarely applied in cognitive psychology and…

In recent years, there have been calls for researchers to report and interpret confidence intervals (CIs) rather than relying solely on p-values. Such reforms, however, may be hindered by a general lack of understanding of CIs and how to interpret them. In this study, we assessed conceptual knowledge of CIs in undergraduate and graduate psychology…

Knowing what skills underlie college success can allow students, teachers, and universities to identify and to help at-risk students. One skill that may underlie success across a variety of subject areas is structure building, the ability to create mental representations of narratives (Gernsbacher, Varner, & Faust, 1990). We tested if…

Previous research studies show that a positive school climate is associated with desirable academic outcomes for youth. In the United States, students with disabilities and English language learner (ELL) students are particularly at-risk for poor academic outcomes and therefore more in need of interventions to support their academic development.…

This study reports the effects of a distributed professional development model emphasizing reading comprehension and vocabulary practices in social studies on the content knowledge, vocabulary, and reading comprehension outcomes of upper elementary students identified as English learners (ELs). Schools were randomly assigned to one of three…

Whether birds of a feather flock together or opposites attract is a classical research question in social and personality psychology. In most existing studies, correlation-based techniques are commonly used to study the similarity/dissimilarity among social entities. Social network data comprises two primary components: actors and the possible…

Many youth experience mental health problems. Schools are an ideal setting to identify, prevent, and intervene in these problems. The purpose of this study was to investigate patterns of student social, emotional, and behavioral risk over time among a community sample of 3rd through 12th grade students and the association of these risk patterns…

Science, Technology, Engineering, and Math (STEM) focused language and interactions build a foundation for later STEM learning. This study examines the ability of a life-size math and science board game "Parkopolis" to foster STEM language and interaction in young children and their families. This study is part of a larger initiative…

Collection and analysis of students' writing samples on a large scale is a part of the research agenda of the emerging writing analytics community that promises to deliver an unprecedented insight into characteristics of student writing. Yet with a large scale often comes variability of contexts in which the samples were produced--different…

Narrative language abilities are foundational to literacy development and are a culturally grounded measure of early literacy for Latino children. This study evaluates the impacts on narrative language abilities and the costs of a 4-week, strengths-based program that leverages two valued sociocultural practices with built-in benefits, personal…

In psychology and the behavioral sciences generally, the use of the hierarchical linear model (HLM) and its extensions for discrete outcomes are popular methods for modeling clustered data. HLM and its discrete outcome extensions, however, are certainly not the only methods available to model clustered data. Although other methods exist and are…

Interventions for youth are often studied in school settings, yet there are barriers that hinder schools from actively participating in the research studies. To ensure interventions are studied in the context they are intended for, adopted in a timely manner, and regularly used in practice as designed, researchers can conduct studies in a manner…

Paraprofessionals are increasingly hired in US schools to support the learning and behavior needs of students with or at risk for disabilities; despite receiving very limited professional development supports to enhance their skills in classrooms. The research base is lacking on effective paraprofessional professional development and intervention…

Background: The dominant perspective in society is that stress has negative consequences, and not surprisingly, the vast majority of interventions for coping with stress focus on reducing the frequency or severity of stressors. However, the effectiveness of stress attenuation is limited because it is often not possible to avoid stressors, and…

Formal empirical assessments of replication have recently become more prominent in several areas of science, including psychology. These assessments have used different statistical approaches to determine if a finding has been replicated. The purpose of this article is to provide several alternative conceptual frameworks that lead to different…