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Contributions to Statistical Analysis
In this work, two new coefficients have been proposed: the Coefficient of Proportional Variance (Cpv) and the Coefficient of Content Validity (Ccv). The Coefficient of Proportional Variance proposes a solution to the problem of measuring and evaluating the relative variability of a given distribution, obviating the problems of subjective interpretation and value judgments. The mathematical relationship derived from the Cpv allows for a more precise and more scientific interpretation of relative variability of data. The Coefficient of Content Validity permits the calculation of the content validity for each item, as well as the total content validity, of any data collection instrument that has been subjected to the evaluation of several judges (Panel of Experts Technique). Until now, according to the psychometric and statistical literature, a quantitative estimator of the content validity of a measuring instrument had not been achieved.
Instrumentos de Recolección de Datos en Ciencias Sociales y Ciencias Biomédicas
Partiendo del supuesto fundamental seg�n el cual toda investigaci�n es v�lida y confiable, en la misma medida en que los instrumentos utilizados de recolecci�n de datos sean v�lidos y confiables, el prop�sito fundamental de este libro es el de ofrecer a investigadores en las ciencias sociales y en las ciencias biom�dicas un conjunto de procedimientos y de herramientas b�sicas mediante las cuales se pueden dise�ar y construir instrumentos de recolecci�n de datos que sean v�lidos y confiables. Se presentan los diferentes tipos de instrumentos que m�s se utilizan en las ciencias sociales y las ciencias biom�dicas, as� como las normas y recomendaciones fundamentales p...
Contribuciones Al Analisis Estadistico de Datos
Two new coefficients to measure Relative Variability and Content Validty in statistical analysis. Properties, examples and Spss computer programs
National Union Catalog
Includes entries for maps and atlases.
Process-development
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