Products related to Validity:
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Innovation in Information Technology
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External Validity and Evidence Accumulation
The accumulation of empirical evidence that has been collected in multiple contexts, places, and times requires a more comprehensive understanding of empirical research than is typically required for interpreting the findings from individual studies.We advance a novel conceptual framework where causal mechanisms are central to characterizing social phenomena that transcend context, place, or time.We distinguish various concepts of external validity, all of which characterize the relationship between the effects produced by mechanisms in different settings.Approaches to evidence accumulation require careful consideration of cross-study features, including theoretical considerations that link constituent studies and measurement considerations about how phenomena are quantifed.Our main theoretical contribution is developing uniting principles that constitute the qualitative and quantitative assumptions that form the basis for a quantitative relationship between constituent studies.We then apply our framework to three approaches to studying general social phenomena: meta-analysis, replication, and extrapolation.
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Property Notices : Validity and Service
Why should you buy Property Notices: Validity and Service third editionThe widely acclaimed Property Notices: Validity and Service provides the definitive account of the law relating to property notices.It contains a clear and practical guide to the legal principles governing whether a property notice is valid and whether it has been properly served.The importance of those principles for property lawyers cannot be over-stated: in the field of property law, rights are frequently exercised by the service of a notice and, for the party that has attempted to serve a notice (and perhaps its lawyers), the consequences of a finding that a notice is invalid may be disastrous. Property Notices: Validity and Service is the only work dedicated to this core area of practice and it is essential reading for all property lawyers.
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Frontiers of Test Validity Theory : Measurement, Causation, and Meaning
Now in its second edition, this important book examines test validity in the behavioral, social, and educational sciences by exploring three fundamental problems: measurement, causation, and meaning.Psychometric and philosophical perspectives and unresolved issues receive attention, as the authors explore how measurement is conceived from both the classical and modern perspectives. Split into three accessible sections, the first contrasts theories of measurement as applied to the validity of behavioral science measures, and the second considers causal theories of measurement as well as alternative theories of causation.The final section explores the meaning and interpretation of test scores as they apply to test validity, offering a conceptual overview of the field and its current state.Each carefully revised chapter begins with an overview of key theories and literature, concludes with a list of suggested readings, and features boxes with real-life situations that connect theory to practice.Examples of specific issues include:How tests can assess an attribute without measuring it. The role of values in test validity. Interpreting responses to the same question in different languages. Researchers, practitioners, and policy makers interested in test validity or developing tests will appreciate the book's cutting-edge review of test validity.Focusing on both the underlying concepts, as well as practical challenges of test construction and use, it also serves as a supplement in graduate or advanced undergraduate courses on test validity, psychometrics, testing, or measurement taught in psychology, education, sociology, social work, political science, business, criminal justice, and other fields.The book does not assume a background in measurement.
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Is validity a continuous variable?
No, validity is not a continuous variable. Validity refers to the extent to which a test or assessment measures what it is intended to measure. It is typically assessed as either present or absent, rather than existing on a continuous scale. Validity is crucial in ensuring that the results of a test are meaningful and accurate.
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What is the validity coefficient?
The validity coefficient is a statistical measure that quantifies the relationship between a predictor (such as a test or assessment) and a criterion (such as job performance or academic achievement). It indicates the degree to which the predictor is able to accurately predict the criterion. A higher validity coefficient suggests a stronger relationship between the predictor and the criterion, indicating that the predictor is more effective in predicting the criterion. Validity coefficients are commonly used in the field of psychometrics and are important for evaluating the effectiveness of selection tools and assessments.
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What is the question without validity?
A question without validity is one that lacks credibility, evidence, or logical reasoning to support its premise. It may be based on false assumptions, biased information, or flawed arguments. Without validity, the question cannot be relied upon to provide accurate or meaningful insights.
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What is the validity of stamps?
The validity of stamps varies depending on the type of stamp and the postal regulations of the country. In general, most stamps do not expire and can be used indefinitely as long as they have not been used before. However, some countries may have specific regulations regarding the use of older stamps or may issue new designs that are required for certain types of mail. It is always best to check with the postal service or consult their website for the most up-to-date information on the validity of stamps.
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Critical ICT4D (Information and Communication Technologies for Development)
The edited volume Critical ICT4D highlights the need for a paradigm change in theorising, designing, and researching Information and Communication Technologies for Development (ICT4D).Engaging authors from the Majority World and entering a process of restoring epistemic justice in knowledge production and ownership, the text:Reflects on the histories and narratives around development programmes, their deep-rooted socio-political background, and the power relations integrated into or induced by such measuresProblematises the current scholarship and practices through decolonial and pluralistic approaches built with an explicit perspective of resisting epistemic violenceConstructs justice-enacting engagements of technologies with society. Offering thematic discussions in many development sectors with up-to-date case studies informed by recent research in the field, it sheds light on constructive contributions of critical ICT4D research.Written in accessible language, the book will appeal to postgraduate students, fellow researchers, policymakers in the fields of sociology, development studies, STS, critical data studies, surveillance studies, international relations, public administration, and information systems.
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Spatial Information Technology for Sustainable Development Goals
This textbook aims to develop a scientific knowledge base on spatial information technology to communicate the United Nations' Sustainable Development Goals (SDGs) among students, researchers, professionals and laymen.The book improves understanding of the spatial database and explains how to extract information from this for planning purposes.To enhance the knowledge of geoscientists and environmentalists, the book describes the basic fundamental concepts to advance techniques for spatial data management and analysis and discusses the methodology.The Geographic Information System (GIS), remote sensing and Global Positioning System (GPS) are presented in an integrated manner for the planning of resources and infrastructure.The management of these systems is discussed in a very lucid way to develop the reader's skills.The proper procedure for map making and spatial analysis are included along with case studies to the reader.Where thefirst part of the book discusses the conceptual background, the second part deals with case studies using these applications in different disciplines.The presented case studies include land use, agriculture, flood, watershed characterization and infrastructure assessment for the Sustainable Development Goals.
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Communication and Information Technology in (Intercultural) Language Teaching
The topic of this book is in congruence with the current trends in foreign language education worldwide.On the one hand, it tackles the concept and implementation of intercultural language teaching; on the other, it analyses the circumstances in which information and communication technology may be utilised in the contemporary EFL classroom.Both intercultural teaching and Computer Assisted Language Learning (CALL) have been promoted by national/international educational documents in Europe, the USA and Asia, and endorsed by international organisations, including the Council of Europe and UNESCO.This book constitutes a pioneering attempt at establishing the role of ICT in English language and culture teaching within the Polish education system.However, the research instruments used within both research modules are applicable to other education systems worldwide, while the results obtained have implications for intercultural and computer-assisted language education in international contexts.The research results presented in the book highlight to the broad EFL profession a wide range of issues relating to the use of ICT in the foreign language classroom.They also offer materials writers, software designers and EFL teachers criteria with which to evaluate the intercultural component of CALL software.
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Cambridge IGCSE Information and Communication Technology Third Edition
This title is endorsed by Cambridge Assessment International Education to support the full syllabus for examination from 2023. Written by renowned expert authors, our updated resources enable the learner to effectively navigate through the content of the updated Cambridge IGCSE™ Information and Communication Technology syllabuses (0417/0983). - Develop skills when working with documents, databases and presentations: detailed step-by-step guidance demonstrates precisely how to perform a full range of software skills. - Build an understanding of theory: concepts are carefully explained and consolidated with a range of different activities. - Tackle spreadsheets and website authoring with confidence: challenging ideas are fully exemplified, with plenty of opportunity to practice using embedded Tasks. - Navigate the syllabus confidently: learning content is clearly mapped to the syllabus, with introductions to each topic outlining the learning objectives. - Consolidate skills and check understanding: activities and exam-style questions are embedded throughout the book, alongside key definitions of technical terms and a Glossary.
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How do I calculate validity in SPSS?
To calculate validity in SPSS, you can use the correlation coefficient (Pearson's r) between the scores of the measure you are testing and a criterion measure. This criterion measure should be a well-established measure that assesses the same construct as your measure. A high correlation between the two measures indicates good validity. You can run a correlation analysis in SPSS to obtain the correlation coefficient and assess the validity of your measure.
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What is the validity period of Ghusl?
The validity period of Ghusl, the Islamic ritual washing of the whole body, is not limited to a specific time frame. It is considered valid as long as the conditions for its performance are met, such as the intention to purify oneself and the use of water to wash the entire body. However, it is recommended to perform Ghusl in a timely manner after specific events, such as sexual intercourse, menstruation, postpartum bleeding, or after the completion of the menstrual cycle. It is also recommended to perform Ghusl on Fridays before the Friday prayer and on the two major Islamic festivals, Eid al-Fitr and Eid al-Adha.
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What is the validity of theory lessons?
Theory lessons are essential for providing students with a solid foundation of knowledge and understanding in a particular subject. They help students grasp fundamental concepts, principles, and frameworks that are crucial for further learning and application. Theory lessons also help students develop critical thinking skills, problem-solving abilities, and a deeper comprehension of the subject matter. Therefore, theory lessons play a vital role in shaping students' overall academic growth and success.
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What is the validity period of prayer?
The validity period of prayer varies depending on the specific prayer being performed. For example, the five daily prayers in Islam have specific time frames within which they must be performed. These time frames are based on the position of the sun and change throughout the year. It is important for individuals to be aware of these time frames and make an effort to perform their prayers within the designated periods to ensure their validity.
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