Mendelian randomization (MR) uses genetic variants as instrumental variables to infer whether a risk factor causally affects a health outcome. Meta-analysis has been used historically in MR to combine results from separate epidemiological studies, with each study using a small but select group of genetic variants. In recent years, it has been used…

This is the decade of data analytics and big data, but not everyone agrees with the definition of big data. Some researchers see it as the future of data analysis, while others consider it as hype and foresee its demise in the near future. No matter how it is defined, big data for the time being is having its glory moment. The most important…

Articles that empirically investigated the emergence of untaught equivalence relations among individuals with autism are presented in this review. Systematic searches of academic databases, journals and ancestry searches identified nine studies that met inclusion criteria. These studies were evaluated according to: (a) participants, (b)…

School personnel make a variety of decisions within multitiered problem-solving frameworks, including the decision to assign a student to group-based support, to design an individualized support plan, or classify a student as eligible for special education. Each decision is founded upon a judgment regarding whether the student has responded to…

Researchers have evaluated active support in agencies for persons with developmental disabilities to increase staff assistance and service user engagement. A systematic review identified two studies in which researchers reported three experimental evaluations of active support. Only one experiment showed a clear functional relationship between…

This study reviewed 4,457 articles from 1998 to 2007 in American Counseling Association division-affiliated journals to identify research articles published in counseling; 1,139 articles (25.6%) were quantitatively research based. The authors provide details related to quantitative research publications, including individual journal contribution…

This comprehensive review of Social Story[TM} literature included (a) a descriptive review, (b) an analysis of research quality, and (c) a meta-analysis using percentage of nonoverlapping data. In the review, 28 studies were included; 18 were included in the meta-analysis. Descriptive results highlighted information on participants, dependent…

This study examines prevention system transformation as part of a community-randomized controlled trial of Communities That Care (CTC). Using data from surveys of community leaders, we examine differences between CTC and control communities 4.5 years after CTC implementation. Significantly higher levels of adopting a science-based approach to…

In this chapter, the authors discuss the issue of research design in conducting inquiry on college impact and demonstrate the importance of longitudinal pretest-posttest designs in maximizing the internal validity of findings. They begin by discussing the strengths and weaknesses of different types of research design in the college impact…

The purpose of this study was to investigate the relative effectiveness of different types of visuals (static and animated) and instructional strategies (no strategy, questions, and questions plus feedback) used to complement visualized materials on students' learning of different educational objectives in a computer-based instructional (CBI)…

The determinants of sentencing are of much interest in criminal justice and legal research. Understanding the determinants of sentencing decisions is important for ensuring transparent, consistent, and justifiable sentencing practice that adheres to the goals of sentencing, such as the punishment, rehabilitation, deterrence, and incapacitation of…

A theoretical variable such as integrity, conscientiousness, or academic honesty may correspond to either a construct or a concept, but the standard idiom does not distinguish the two. One can describe the difference between constructs and concepts in terms of set theory. Constructs extend over actual cases, whereas concepts extend over both…

In this study, the different types of research designs used to assess the impact of prerequisite courses are presented. Supported by an in-depth literature review, the challenges that are faced in the assessment of the impact of prerequisites, from statistical to political, are identified and their pitfalls are pointed out. In particular, the…

This paper reports a systematic literature review examining empirical studies on the effects of peer assessment for learning. Peer assessment is fundamentally a social process whose core activity is feedback given to and received from others, aimed at enhancing the performance of each individual group member and/or the group as a whole. This makes…

Methodological reviews have been used successfully to identify research trends and improve research practice in a variety of academic fields. Although there have been three methodological reviews of the emerging field of computer science education research, they lacked reliability or generalizability. Therefore, because of the capacity for a…