Search results
1 – 10 of over 4000Bahman Arasteh and Ali Ghaffari
Reducing the number of generated mutants by clustering redundant mutants, reducing the execution time by decreasing the number of generated mutants and reducing the cost of…
Abstract
Purpose
Reducing the number of generated mutants by clustering redundant mutants, reducing the execution time by decreasing the number of generated mutants and reducing the cost of mutation testing are the main goals of this study.
Design/methodology/approach
In this study, a method is suggested to identify and prone the redundant mutants. In the method, first, the program source code is analyzed by the developed parser to filter out the effectless instructions; then the remaining instructions are mutated by the standard mutation operators. The single-line mutants are partially executed by the developed instruction evaluator. Next, a clustering method is used to group the single-line mutants with the same results. There is only one complete run per cluster.
Findings
The results of experiments on the Java benchmarks indicate that the proposed method causes a 53.51 per cent reduction in the number of mutants and a 57.64 per cent time reduction compared to similar experiments in the MuJava and MuClipse tools.
Originality/value
Developing a classifier that takes the source code of the program and classifies the programs' instructions into effective and effectless classes using a dependency graph; filtering out the effectless instructions reduces the total number of mutants generated; Developing and implementing an instruction parser and instruction-level mutant generator for Java programs; the mutant generator takes instruction in the original program as a string and generates its single-line mutants based on the standard mutation operators in MuJava; Developing a stack-based evaluator that takes an instruction (original or mutant) and the test data and evaluates its result without executing the whole program.
Details
Keywords
Waheed Hammad, Yara Yasser Hilal and Mehmet Şükrü Bellibaş
Research has provided powerful evidence that what teachers do in the classroom matters most for the learning of students. Evidence also suggests that school leaders can make a…
Abstract
Purpose
Research has provided powerful evidence that what teachers do in the classroom matters most for the learning of students. Evidence also suggests that school leaders can make a significant difference to student learning via their influence on teachers' attitudes, beliefs and classroom practices. The purpose of this study was to examine if/how principal instructional leadership practices affect differentiated instruction in Omani schools, and understand the role that teacher collaboration and self-efficacy play in this dynamic.
Design/methodology/approach
The study used structural equation modeling (SEM) to analyze data collected from a sample of 496 teachers working in public schools in Muscat, Oman.
Findings
The findings revealed no direct association between principal instructional leadership and differentiated instruction. Instead, the effects of principal instructional leadership on differentiated instruction were achieved indirectly through the mediation of teacher collaboration and teacher self-efficacy. Collaboration was also found to have a positive influence on the teachers' self-efficacy beliefs.
Originality/value
The significance of this study stems from its relevance to the educational developments unfolding not only in Oman, but in the Gulf region at large. Recent reviews of educational administration and leadership research in the Gulf states indicate the scarcity of empirical research investigating the relationship between principal leadership and teacher practices. This is problematic as it creates a gap in our knowledge of the factors that can support ongoing school improvement initiatives in the region. More specifically, we expect our findings to guide current educational reforms aimed at raising education quality via promoting effective teaching and learning in Omani schools.
Details
Keywords
Margaret P. Weiss, Lisa Goran, Michael Faggella-Luby and David F. Bateman
In this chapter, we focus on specially designed instruction (SDI) as a core value for the field of specific learning disabilities (SLD). SDI is at the heart of special education…
Abstract
In this chapter, we focus on specially designed instruction (SDI) as a core value for the field of specific learning disabilities (SLD). SDI is at the heart of special education, and the field of LD has been built on the core value that effective instruction improves student outcomes. We describe a two-step test and an extended example of what is and is not SDI for Matt, a student with an SLD. Finally, we discuss some of the confusion surrounding SDI and the need for the field to return to its core value of individualized, intentional, targeted, evidence- or high leverage practice–based, and systematic instruction for students with SLD.
Details
Keywords
This case study explores how universal design for learning (UDL)-informed online instruction modules developed during COVID-19 can better support student information literacy…
Abstract
Purpose
This case study explores how universal design for learning (UDL)-informed online instruction modules developed during COVID-19 can better support student information literacy outcomes. This study will also examine how hybrid learning lends itself to UDL and may resolve some of the issues within library instruction.
Design/methodology/approach
This case study explores how a team of librarians at Utah State University developed three UDL-informed modules to support library instruction and hybrid learning during the height of the COVID-19 pandemic. A survey was sent to composition instructors to understand how they utilized the three new UDL-informed modules and if the modules helped their students reach information literacy outcomes.
Findings
Findings from this case study describe how academic libraries should adopt the UDL framework to support best practices for online learning as well as inclusive pedagogies. The findings indicate that the UDL-informed modules developed for hybrid instruction help students meet information literacy outcomes and goals.
Originality/value
The authors present a case study examining the current climate of information literacy instruction and UDL while providing actionable instructional practices that can be of use to librarians implementing hybrid instruction.
Details
Keywords
This case study sought to investigate the relationship between pre-service teachers’ participation in designing and delivering one-on-one literacy intervention lessons to…
Abstract
Purpose
This case study sought to investigate the relationship between pre-service teachers’ participation in designing and delivering one-on-one literacy intervention lessons to beginning readers and their own evolving self-efficacy in literacy instruction.
Design/methodology/approach
The study was embedded within a 4000-level course in the elementary education major where pre-service teachers learn to administer, analyze and interpret a variety of literacy assessments. Based on the results of these assessments, pre-service teachers designed and implemented literacy lessons (twice a week, 30-min sessions) that addressed the beginning readers' specific instructional needs. Through collecting pre/post data with their first-grade intervention students, and participating in reflective “check-ins” (surveys, a focus group and end-of-course written reflection), a portrait of increased pre-service teacher self-efficacy in literacy instruction comes into focus.
Findings
The data showed, primarily through the thematic analysis of qualitative data, that the experience of conducting a one-on-one intervention with a striving reader impacted pre-service teachers’ self-efficacy positively.
Research limitations/implications
The methodology of this study was limited by the small sample size and the low participant response rate on the quantitative survey measure.
Practical implications
This paper highlights one aspect in which clinically-rich field experiences can make a difference in the literacy instruction self-efficacy of pre-service teachers.
Originality/value
This study adds to the support for authentic instructional applications of course content in educator preparation programs, specifically in Professional Development School (partner school system) contexts. The aspect of observing and measuring intervention student progress was one lens through which pre-service teachers viewed their efficacy. Further investigations focusing on other assessment-instruction cycles could provide additional insights.
Details
Keywords
Kristoffer Vandrup Sigsgaard, Julie Krogh Agergaard, Niels Henrik Mortensen, Kasper Barslund Hansen and Jingrui Ge
The study consists of a literature study and a case study. The need for a method via which to handle instruction complexity was identified in both studies. The proposed method was…
Abstract
Purpose
The study consists of a literature study and a case study. The need for a method via which to handle instruction complexity was identified in both studies. The proposed method was developed based on methods from the literature and experience from the case company.
Design/methodology/approach
The purpose of the study presented in this paper is to investigate how linking different maintenance domains in a modular maintenance instruction architecture can help reduce the complexity of maintenance instructions.
Findings
The proposed method combines knowledge from the operational and physical domains to reduce the number of instruction task variants. In a case study, the number of instruction task modules was reduced from 224 to 20, covering 83% of the maintenance performed on emergency shutdown valves.
Originality/value
The study showed that the other methods proposed within the body of maintenance literature mainly focus on the development of modular instructions, without the reduction of complexity and non-value-adding variation observed in the product architecture literature.
Details
Keywords
Carolyn Caffrey, Hannah Lee, Tessa Withorn, Elizabeth Galoozis, Maggie Clarke, Thomas Philo, Jillian Eslami, Dana Ospina, Aric Haas, Katie Paris Kohn, Kendra Macomber, Hallie Clawson and Wendolyn Vermeer
This paper aims to present recently published resources on library instruction and information literacy. It provides an introductory overview and a selected annotated bibliography…
Abstract
Purpose
This paper aims to present recently published resources on library instruction and information literacy. It provides an introductory overview and a selected annotated bibliography of publications organized thematically and detailing, study populations, results and research contexts. The selected bibliography is useful to efficiently keep up with trends in library instruction for academic library practitioners, library science students and those wishing to learn about information literacy in other contexts.
Design/methodology/approach
This article annotates 340 English-language periodical articles, dissertations, theses and reports on library instruction and information literacy published in 2022. The sources were selected from the EBSCO platform for Library, Information Science and Technology Abstracts (LISTA), Education Resources Information Center (ERIC), Elsevier SCOPUS and ProQuest Dissertations and Theses. Sources selected were published in 2022 and included the terms “information literacy,” “library instruction,” or “information fluency” in the title, subject terms, or author supplied keywords. The sources were organized in Zotero. Annotations were made summarizing the source, focusing on the findings or implications. Each source was then thematically categorized and organized for academic librarians to be able to skim and use the annotated bibliography efficiently.
Findings
The paper provides a brief description of 340 sources from 144 unique publications, and highlights publications that contain unique or significant scholarly contributions. Further analysis of the sources and authorship are provided.
Originality/value
The information is primarily of use to academic librarians, researchers, and anyone interested as a quick and comprehensive reference to literature on library instruction and information literacy published within 2022.
Details
Keywords
Children of recent refugees and immigrants are the fastest growing student population in the US public education system. Thus, it is imperative to create research-based pedagogies…
Abstract
Children of recent refugees and immigrants are the fastest growing student population in the US public education system. Thus, it is imperative to create research-based pedagogies that value linguistic diversity, provide academic and social–emotional support and embrace life experiences that are often vastly different from those of the teachers and typical students. The goal of this study was to examine the effects of an instructional model designed to address specific academic and social–emotional competencies of linguistically and culturally diverse students on the writing of eight and nine-year-old students (n = 10) enrolled in an afterschool programme serving students from refugee families. The model of explicit writing instruction implemented in the study included culturally responsive literature, mindfulness practices, and differentiation in teaching genre-specific text structure and academic vocabulary. Pre- and post-test personal essays were scored for holistic quality of writing and use of academic vocabulary. The findings indicate that explicit and differentiated instruction in both writing organisation and vocabulary use was effective in increasing the holistic quality of students' personal writing and their ability to integrate academic vocabulary appropriately and meaningfully in independent writing. Implications for culturally responsive instruction for refugee students are discussed.
Details
Keywords
Jadelyn Abbott, Katherine Landau Wright and Hannah Carter
The purpose of this study was to identify if and how K–6 teachers perceive that their literacy instructional coaches influence their writing teaching.
Abstract
Purpose
The purpose of this study was to identify if and how K–6 teachers perceive that their literacy instructional coaches influence their writing teaching.
Design/methodology/approach
The authors employed a parallel convergent mixed-methods design with survey data. The authors used thematic analysis to identify patterns within short-answer responses.
Findings
K–6 teachers receive little literacy coaching specific to writing. However, when they do receive coaching, they believe it benefits their writing instruction. Sustained coaching through the coaching cycle, frequent collaborations, and support with writing instructional resources and strategies were reported as the most influential writing coaching practices.
Research limitations/implications
Sample size was a limitation to this study. Of the 66 participants, 41 (62%) completed the entire survey.
Practical implications
This research provides coaches with valuable insights about coaching practices that teachers find to be the most effective in influencing their writing instruction. The increase in teachers' competence in writing instruction due to coaching provides evidence to administrators and stakeholders that coaching in writing is an area in need of attention.
Originality/value
This study adds to research specific to the coaching of writing within the K–6 context, which currently is sparse.
Details
Keywords
Adriana I. Martinez Calvit and Donna Y. Ford
The purpose of this paper is to present insights from the implementation of a dialogic social studies curriculum and its potential to support diverse learners. Policymakers and…
Abstract
Purpose
The purpose of this paper is to present insights from the implementation of a dialogic social studies curriculum and its potential to support diverse learners. Policymakers and educators must attend to the learning needs of diverse/minoritized (Note: In this paper, the authors use minoritized and diverse interchangeably) students who have been marginalized in public education. A critical goal is to close racial, ethnic and socioeconomic achievement gaps by increasing, for example, students’ engagement with curriculum and instruction. In this paper, the authors bridge research on dialogic instruction and culturally relevant and responsive education with the goal of informing curricular design and instructional practice.
Design/methodology/approach
This conceptual paper discusses the utility of dialogic instruction in improving learning outcomes for minoritized student populations. While some researchers have examined the positive effects of dialogic instruction on underperforming students (e.g. Murphy et al., 2009; Pillinger and Vardy, 2022), few scholars have examined dialogic instruction through a culturally relevant and responsive lens. The authors argue that the application of this critical lens may improve learning outcomes for diverse learners who have been marginalized in public education systems.
Findings
The authors present illustrative vignettes and insights from a pilot study of a novel social studies curriculum. This curriculum applies a social justice lens by guiding students in the exploration of complex social issues that affect them. Given the diversity of their collaborating teachers’ classrooms (55% are racially minoritized students), the authors applied principles of culturally relevant and responsive education (e.g. Ford, 2010; Gay, 2000; Ladson-Billings, 1995) when designing and piloting the curriculum. Prior personal and professional experiences by the first author point to the potential of dialogic instruction to meaningfully support minoritized students’ learning.
Originality/value
This paper builds on two bodies of literature – dialogic instruction and culturally relevant and responsive education – to identify how an innovative social studies curriculum may improve learning for diverse student populations. It calls for the advancement of a research agenda that applies a culturally relevant and responsive lens to inform instructional practice. The authors begin this discussion with two vignettes.
Details