A Meta-Analysis of Schema Instruction Implemented in Single-Case Experimental Designs

2018 ◽  
Vol 52 (2) ◽  
pp. 89-100 ◽  
Author(s):  
Corey J. Peltier ◽  
Kimberly J. Vannest ◽  
Josh J. Marbach
Keyword(s):  
Students With Disabilities ◽  
Single Case ◽  
Meta Analysis ◽  
Mathematical Problem ◽  
Experimental Designs ◽  
Mathematical Problem Solving ◽  
Evidence Based ◽  
Inclusion Criteria ◽  
Use Of Technology ◽  
Meta Analyses

Identifying mathematical interventions that practitioners can implement to improve the mathematical problem solving (PS) of students is a need for the field. Literature on the PS performance of students with disabilities has grown; recently, schema instruction (SI) has been suggested as an evidence-based practice. The purpose of this study was to meta-analyze single-case experimental designs (SCEDs) that implemented SI with students identified with disabilities. A total of 16 studies, with 61 students identified with disabilities met the inclusion criteria. Tau U was used to report intervention effects; this decision was made because it is more robust than other nonoverlap methods and is frequently reported in published meta-analyses of SCEDs. Moderator analyses included grade of participants, use of technology, disability category, and the type of problems taught. The weighted aggregated Tau U was 88.29% (90% confidence interval [CI] = [80.5%, 96.1%]). Moderator analysis and implications for practice are discussed.

Interventions to Improve Fraction Skills for Students With Disabilities: A Meta-Analysis

2019 ◽  
Vol 85 (3) ◽  
pp. 367-386 ◽  
Author(s):  
Robin Parks Ennis ◽  
Mickey Losinski
Keyword(s):  
Students With Disabilities ◽  
Quality Indicators ◽  
Video Modeling ◽  
Explicit Instruction ◽  
Single Case ◽  
Meta Analysis ◽  
Strategy Instruction ◽  
Future Research ◽  
Evidence Based ◽  
Meta Analyses

Proficiency with fractions is one of the most significant predictors of later mathematics achievement. However, there are currently no meta-analyses that assess the literature base on fractions for students with or at risk for disabilities using quality indicators. We applied the 2014 Council for Exceptional Children Standards for Evidence-Based Practices in Special Education (CEC EBP) to 21 studies, both single-case and group designs, with instructionally based fraction interventions, published from 1986 to 2017. Ten of the included studies met all of the CEC EBP quality indicators, and effect sizes ranged from g = 0.42 to 11.51 across interventions. Publication bias was mixed but limited across the research base. Included studies examined the effects of anchored instruction, explicit instruction, graduated instruction, strategy instruction, and video modeling; explicit instruction was determined to be an evidence-based practice when applying the CEC EBP standards. We offer limitations and directions for future research in this area.

Three-Level Meta-Analysis of Single-Case Data Regarding the Effects of Peer Tutoring on Academic and Social-Behavioral Outcomes for At-Risk Students and Students With Disabilities

2019 ◽  
pp. 074193251985507 ◽  
Author(s):  
Mariola Moeyaert ◽  
David A. Klingbeil ◽  
Emily Rodabaugh ◽  
Merve Turan
Keyword(s):  
Social Behavior ◽  
Students With Disabilities ◽  
Peer Tutoring ◽  
Academic Outcomes ◽  
Single Case ◽  
Meta Analysis ◽  
Treatment Phase ◽  
Evidence Based ◽  
Behavior Outcomes ◽  
Study Heterogeneity

Meta-analysis of single-case experimental designs may further knowledge about evidence-based practices for students needing remedial or special education. To contribute to evidence-based practice, a multivariate multilevel meta-analysis was used to synthesize the effectiveness of peer tutoring interventions on both academic and social-behavior outcomes. In total, 46 single-case studies met all inclusion criteria. Peer tutoring had a statistically significant effect on both academic and social-behavior outcomes, with a slightly larger effect on academic outcomes. Peer tutoring also had a significant effect on the trend in academic outcomes during the treatment phase (indicating that the intervention becomes more effective over time), but the effect on trends was slightly less than for social outcomes. Including moderators such as gender, age, disability type, and study quality reduced the amount of between-case and between-study heterogeneity. Limitations and implications of these findings are discussed.

scholarly journals A Meta-Analysis of the Prevalence of Cardiac Valvulopathy in Patients With Hyperprolactinemia Treated With Cabergoline

2018 ◽  
Vol 104 (2) ◽  
pp. 523-538 ◽  
Author(s):  
Craig E Stiles ◽  
Eugene T Tetteh-Wayoe ◽  
Jonathan P Bestwick ◽  
Richard P Steeds ◽  
William M Drake
Keyword(s):  
Tricuspid Regurgitation ◽  
Clinical Symptoms ◽  
Single Case ◽  
Case Reports ◽  
Data Extraction ◽  
Meta Analysis ◽  
Pituitary Tumors ◽  
Inclusion Criteria ◽  
Case Control Studies ◽  
Meta Analyses

Abstract Context Cabergoline is first-line treatment for most patients with lactotrope pituitary tumors and hyperprolactinemia. Its use at high dosages in Parkinson disease (PD) has largely been abandoned because of its association with the development of a characteristic restrictive cardiac valvulopathy. Whether similar valvular changes occur in patients receiving lower dosages for treatment of hyperprolactinemia is unclear, although stringent regulatory recommendations for echocardiographic screening exist. Objective To conduct a meta-analysis exploring any link between the use of cabergoline for the treatment of hyperprolactinemia and clinically significant cardiac valvulopathy. Data Sources Full-text articles published through January 2017 were found via PubMed and selected according to strict inclusion criteria. Study Selection All case-control studies were included where patients had received ≥6 months of cabergoline treatment for hyperprolactinemia. Single case reports, previous meta-analyses, review articles, and articles pertaining solely to PD were excluded. Of 76 originally selected studies, 13 met inclusion criteria. Data Extraction Desired data were compiled and extracted from articles by independent observers. Each also independently graded article quality (bias) and met to reach consensus. Data Synthesis More tricuspid regurgitation was observed (OR 3.74; 95% CI, 1.79 to 7.8; P < 0.001) in the cabergoline-treated patients compared with controls. In no patient was tricuspid valve dysfunction diagnosed as a result of clinical symptoms. There was no significant increase in any other valvulopathy. Conclusions Treatment with low-dose cabergoline in hyperprolactinemia appears to be associated with an increased prevalence of tricuspid regurgitation. The clinical significance of this finding is unclear and warrants further investigation.

scholarly journals Teachers’ Use of Technology Affordances to Contextualize and Dynamically Enrich and Extend Mathematical Problem-Solving Strategies

Mathematics ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 793
Author(s):  
Manuel Santos-Trigo ◽  
Fernando Barrera-Mora ◽  
Matías Camacho-Machín
Keyword(s):  
Problem Solving ◽  
High School Teachers ◽  
Digital Technology ◽  
Dynamic Models ◽  
Mathematical Problem ◽  
Mathematical Problem Solving ◽  
School Teachers ◽  
Use Of Technology ◽  
Technology Affordances ◽  
Problem Solving Strategies

This study aims to document the extent to which the use of digital technology enhances and extends high school teachers’ problem-solving strategies when framing their teaching scenarios. The participants systematically relied on online developments such as Wikipedia to contextualize problem statements or to review involved concepts. Likewise, they activated GeoGebra’s affordances to construct and explore dynamic models of tasks. The Apollonius problem is used to illustrate and discuss how the participants contextualized the task and relied on technology affordances to construct and explore problems’ dynamic models. As a result, they exhibited and extended the domain of several problem-solving strategies including the use of simpler cases, dragging orderly objects, measuring objects attributes, and finding loci of some objects that shaped their approached to reasoning and solve problems.

scholarly journals Osteoarthritis, mobility-related comorbidities and mortality: an overview of meta-analyses

2020 ◽  
Vol 12 ◽  
pp. 1759720X2098121
Author(s):  
Gustavo Constantino de Campos ◽  
Raman Mundi ◽  
Craig Whittington ◽  
Marie-Josée Toutounji ◽  
Wilson Ngai ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Odds Ratio ◽  
Meta Analysis ◽  
Inclusion Criteria ◽  
Increased Risk ◽  
All Cause Mortality ◽  
Ischemic Attack ◽  
Meta Analyses ◽  
The Relationship ◽  
Related Mortality

Aims: The objective of this review was to examine the relationship between osteoarthritis (OA) and mobility-related comorbidities, specifically diabetes mellitus (DM) and cardiovascular disease (CVD). It also investigated the relationship between OA and mortality. Methods: An overview of meta-analyses was conducted by performing two targeted searches from inception to June 2020. The association between OA and (i) DM or CVD ( via PubMed and Embase); and (ii) mortality ( via PubMed) was investigated. Meta-analyses were selected if they included studies that examined adults with OA at any site and reported associations between OA and DM, CVD, or mortality. Evidence was synthesized qualitatively. Results: Six meta-analyses met inclusion criteria. One meta-analysis of 20 studies demonstrated a statistically significant association between OA and DM, with pooled odds ratio of 1.41 (95% confidence interval: 1.21, 1.65; n = 1,040,175 patients). One meta-analysis of 15 studies demonstrated significantly increased risk of CVD among OA patients, with a pooled risk ratio of 1.24 (1.12, 1.37, n = 358,944 patients). Stratified by type of CVD, OA was shown to be associated with increased heart failure (HF) and ischemic heart disease (IHD) and reduced transient ischemic attack (TIA). There was no association reported for stroke or myocardial infarction (MI). Three meta-analyses did not find a significant association between OA (any site) and all-cause mortality. However, OA was found to be significantly associated with cardiovascular-related death across two meta-analyses. Conclusion: The identified meta-analyses reported significantly increased risk of both DM and CVD (particularly, HF and IHD) among OA patients. It was not possible to confirm consistent directional or causal relationships. OA was found to be associated with increased mortality, but mostly in relation to CVD-related mortality, suggesting that further study is warranted in this area.

scholarly journals Comparative Effectiveness Research: Using Systematic Reviews and Meta-Analyses to Synthesize Empirical Evidence

2011 ◽  
Vol 25 (3) ◽  
pp. 191-209 ◽  
Author(s):  
Maria C. Katapodi ◽  
Laurel L. Northouse
Keyword(s):  
Systematic Reviews ◽  
Comparative Effectiveness Research ◽  
Comparative Effectiveness ◽  
Meta Analysis ◽  
Research Question ◽  
Alternative Methods ◽  
Evidence Based ◽  
Effectiveness Research ◽  
Meta Analyses ◽  
Research Studies

The increased demand for evidence-based health care practices calls for comparative effectiveness research (CER), namely the generation and synthesis of research evidence to compare the benefits and harms of alternative methods of care. A significant contribution of CER is the systematic identification and synthesis of available research studies on a specific topic. The purpose of this article is to provide an overview of methodological issues pertaining to systematic reviews and meta-analyses to be used by investigators with the purpose of conducting CER. A systematic review or meta-analysis is guided by a research protocol, which includes (a) the research question, (b) inclusion and exclusion criteria with respect to the target population and studies, © guidelines for obtaining relevant studies, (d) methods for data extraction and coding, (e) methods for data synthesis, and (f ) guidelines for reporting results and assessing for bias. This article presents an algorithm for generating evidence-based knowledge by systematically identifying, retrieving, and synthesizing large bodies of research studies. Recommendations for evaluating the strength of evidence, interpreting findings, and discussing clinical applicability are offered.

Evidence-based approaches to psychiatry

2017 ◽  
pp. 119-134
Author(s):  
Paul Harrison ◽  
Philip Cowen ◽  
Tom Burns ◽  
Mina Fazel
Keyword(s):  
Patient Experience ◽  
Meta Analysis ◽  
Psychiatric Research ◽  
Evidence Based ◽  
High Quality ◽  
Qualitative Methodologies ◽  
Meta Analyses ◽  
Based Medicine ◽  
Quality Evidence

‘Evidence-based approaches to psychiatry’ describes the application of evidence-based medicine (EBM) to psychiatric practice. The chapter covers the key processes in EBM, including the formulation of a clinically relevant question, the systematic search for high-quality evidence and the meta-analytic synthesis of data. It demonstrates how evidence-based approaches to psychiatry have led to important developments showing quantitative effects of different treatments through advanced meta-analysis of data from randomized trials. This has underpinned the development of clinical guidelines that have the aim of improving the reliability and quality of treatments that patients receive. The chapter also describes how meta-analyses should be critically reviewed, as well as their problems and limitations. Not all relevant questions in psychiatric research are susceptible to the quantitative approach offered by EBM, and the chapter also outlines how qualitative methodologies can play a key role in answering important questions related, for example, to the patient experience.

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