VALIDITY AND RELIABILITY For the statistical consultant working with social science researchers the estimation of reliability and validity is a task frequently encountered. Measurement issues differ in the social sciences in that they are related to the quantification of abstract‚ intangible and unobservable constructs. In many instances‚ then‚ the meaning of quantities is only inferred. Let us begin by a general description of the paradigm that we are dealing with. Most concepts in the behavioral
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The notable differences between classical and contemporary theories of social justice are the way the issue is explored. Differences also occur in the emphasis placed on different aspects of social justice and how to achieve it. The notable similarities seem to be that there is a need for social justice and that to achieve social justice many changes need to occur. Another similarity is the debate that social justice is not an easily achievable outcome. In classical theories about social justice
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various aspects of evaluative standards like reliability and validity. Alongside the research work here describes the various phases in a selection process and a case study which help understand how reliability and validity can be examined and achieved over the entire selection process. Validity Validity in general is “the accuracy in measurement and it must measure what it purports to measure” (Cooper‚ Robertson and Tinline‚ 2003‚ pp 49) Different types of validity can be considered
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discusses two of the theories surrounding children’s learning and development. It further goes on to discuss how they could be used to inform practice in the classroom. The two theories to be discussed are Vygotsky’s Social Development Theory and Gardner’s Multiple Intelligences Theory. Lev Vygotsky was a Russian psychologist who lived from 1896 to 1934. He was widely involved in developing the education program of the emerging Soviet Union. At the time of his death‚ his theory was not known outside
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The purpose of this article is to summarize‚ integrate‚ and evaluate the many ways interviews can be structured. Reliability and validity are key concepts in the process of selecting among job applicants‚ since the main goal of selection is to make accurate predictions about which individuals will perform well on the job. Reliability is the consistency of measurement‚ or the degree to which an instrument measures the same way each time it is used under the same condition with the same subjects (definition
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SOME ASPECTS OF CONCRETING BY RMC PLANT By Akanksha Thakur Chetan Kaushal Karanwal Dixit Sharma Modish Kaushal ACKNOWLEDGEMENT We take this opportunity to express our deep and sincere gratitude to Dr.(Prof.) R.M. Vasan‚ Dr. Ajay Goel and all the faculty members of Civil Engg. Dept. Of Baddi University for their encouragement and esteemed guidance during the course of this work. Akanksha Thakur Chetan Kaushal Karanwal Dixit Sharma Modish Kaushal
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Schwann and M.J. Schleiden introduced the cell theory; the theory that individual cells make up all tissues.1 However‚ due to the lack of staining techniques at the time‚ not much was known about nervous tissue and many scientists wondered if it even conformed to the same rules followed by all the other cells in the body. Two major theories were proposed regarding the nervous system: the reticular theory by Josef van Gerlach‚ and the neuron doctrine theory.1 Eventually‚ in 1873‚ an Italian scientist
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SOST 131 Discuss the following sociological theories‚ showing their practicability In Kenya: Table of Content 1. Structural Functionalism Definition Propositions Practicability in Kenya 2. Conflict Theory Definition Social Stratification Wealth and Power Structural functionalism Structural Functionalism is a theoretical understanding of society that posits social systems are collective means to fill social needs. In order for social life to
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Explanations of Attachment – Learning Theory AO1: Learning Theory stated that all behaviour is learnt rather than innate and that we are born a ‘blank slate’. Behaviourists suggest that all behaviour is learned either through classical or operant conditioning. Classical Conditioning - Association Food produces pleasure‚ primary care giver (food giver) is associated with the food and becomes a conditioned stimulus. Operant Conditioning – Reward and punishment According to operant conditioning
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OPPONENT-PROCESS THEORY Opponent-process theory is a psychological and neurological model that accounts for a wide range of behaviors‚ including color vision. Simply it says “All colors are combinations of responses in three underlying bipolar systems (Red/Green‚ Blue/Yellow‚ and Black/White)”. This model was first proposed in 1878 by Ewald Hering‚ a German physiologist‚ and later expanded by Richard Solomon‚ a 20th-century psychologist. Introduction The color opponent process is a color theory that
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