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We study recently developed nonparametric methods for estimating the number of missing studies that might exist in a meta-analysis and the effect that these studies might have had on its outcome. These are simple rank-ba...

Construct Validity in Psychological TestsVALIDATION of psychological tests has not yet been adequately concep tua1ized, as the APA Committee on Psychological Tests learned when it undertook to specify what qualities shou...

Abstract In a 1935 paper and in his book Theory of Probability, Jeffreys developed a methodology for quantifying the evidence in favor of a scientific theory. The centerpiece was a number, now called the Bayes factor, wh...

An essential textbook for any student or researcher in biology needing to design experiments, sample programs or analyse the resulting data. The text begins with a revision of estimation and hypothesis testing methods, c...

With its theoretical basis firmly established in molecular evolutionary and population genetics, the comparative DNA and protein sequence analysis plays a central role in reconstructing the evolutionary histories of spec...

Medical educators attempt to create reliable and valid tests and questionnaires in order to enhance the accuracy of their assessment and evaluations. Validity and reliability are two fundamental elements in the evaluatio...

BACKGROUND: the analysis of microbial communities through dna sequencing brings many challenges: the integration of different types of data with methods from ecology, genetics, phylogenetics, multivariate statistics, vis...

Materias / palabras clave: architecture and engineering, environment, construction systems, testing techniques, building compound research; Fine Arts: Architecture; Technology: Building construction

Materias / palabras clave: analytical chemistry, testing techniques, dna sequencing, personalized laboratory medicine; Medicine: Internal medicine

Materias / palabras clave: polymer blending, material composite, polymer rheology and molding, biodegradable and renewable polymer, polymer characterization and testing, polymer processing techniques and equipmentpolymer blending; Technology: Chem...

Materias / palabras clave: materials and ingredient research related to cosmetics, product formulations and ingredients, technologies in cosmetic product development, biomedicine research on biologically active components, testing of skin and hair...

Materias / palabras clave: grain storage methods and techniques, quality change and testing technology for grain and edible oil, grain pest control, mycotoxin control technology, food security, effect of biologically active ingredients on food eff...