Social validity of interventions is often conceptualized as a triad of the social significance of goals, the acceptability of procedures, and the importance of intervention outcomes (Wolf, 1978). Social validity measurement is considered an essential part of quality single-case design studies. Yet, the practice has been inconsistently reflected in…

Reading is a complex, uniquely human invention for communication through print. It is a critical ability for making progress in education. Students with reading difficulties, the most common learning disability, struggle with reading fluency and accuracy. Skilled reading is enabled by the coordination of a network of brain regions interconnected…

Methods to estimate the causal effects of interventions are increasingly used in clinical medicine, public policy and social science. Using observational data, researchers can obtain causal treatment effect estimates without the ethical risks and time constraints that typically burden randomized experiments. The three studies in this dissertation…

Educational intervention research addresses multiple barriers that under-sourced communities face in education. I test three methods to improve education program design and evaluation to develop programs that have substantial and lasting impacts on student outcomes. In my dissertation, I review current challenges to educational program evaluation…

This dissertation explores conceptual and methodological issues related to measuring implementation in quantitative educational research. Implementation, defined as the enactment of interventions in educational contexts, plays a pivotal role in understanding how programs operate and affect student outcomes. Despite its importance, there is…

The purpose of this study was to conduct a systematic review of the literature relating to stress management interventions that have been implemented on teachers in urban settings. A total of 44 relevant experimental studies were found that were conducted in the United States and 14 of those articles were conducted in urban settings. The articles…

This series of three studies identified an experimental research gap in the field of deafblindness. Study 1, a descriptive study, identified types of articles published, and research designs used, in 37 peer-reviewed special education journals. A total of 4,854 articles published from 2012 through 2017 were examined to determine types of articles…

Educational researchers are often tasked with postulating and measuring unknown processes that account for observed outcomes. Logically, this requires inductive reasoning about which constructs are relevant to the situation we seek to understand, prior to attempts at measurement. Exploratory mixed methods designs, along with a few classic designs…

Implementation fidelity is considered an indicator of an intervention's internal validity. In reading research, while student outcome measures are often well described, measures of implementation fidelity have received far less attention. Although researchers have become interested in the relation between implementation fidelity and student…

The prevalence of adolescents and adults with autism spectrum disorder (ASD) is growing worldwide. There is a lack of services to support adolescents and adults with ASD in different areas including social-communication intervention. To fill these research gaps in the literature, the three studies in this dissertation extended the literature on…

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disability characterized by symptoms of inattention, hyperactivity and impulsiveness, which may cause impairment in a variety of cognitive, social, behavioral, and emotional domains. Extensive research has been conducted to determine the best course of treatment for…

In contrast to Early Intensive Behavioral Intervention (EIBI), there are far fewer meta-analyses evaluating Naturalistic Developmental Behavioral Interventions (NDBIs) (Schreibman et al., 2015). Indeed, Pivotal Response Treatment (PRT)--a prominent NDBI--lacks meta-analytic studies. In the context of developing a line of research on the…

Rationale: Binge eating puts individuals at risk for dropout of weight loss treatments and weight regain after treatment. However, treatments for binge eating have not been successful at influencing weight. To improve obesity treatment, research needs to examine binge eating with new theoretical approaches, interdisciplinary paradigms that span…

Despite decades of research supporting family engagement's benefits on children's social, emotional, behavioral, and academic development (Hill & Tyson, 2009; Jeynes, 2012; Patall et al., 2010; Sheridan et al., 2010), teachers are not always adequately prepared to work with families (Chavkin & Williams, 1988; Epstein & Sanders, 2006;…

This meta-analysis synthesized the findings from 23 published and five unpublished experimental or quasi-experimental group design studies on word problem-solving instruction for K-12 students with learning disabilities (LD) and mathematics difficulties (MD). A secondary purpose of this meta-analysis was to analyze the relation between treatment…