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Capítulo 12

Estatística na Prática

O que é um Experimento?
O que é um Experimento?
An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two ...
Delineamento de Estudo em Estatística
Delineamento de Estudo em Estatística
A study design is a set of techniques that allow a researcher to collect and analyze data from different variables defined for a specific research ...
Estudos Observacionais
Estudos Observacionais
Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not ...
Delineamentos Experimentais
Delineamentos Experimentais
An experimental design is a systematic process that allows researchers to evaluate the relationship between dependent and independent variables. There are ...
Experimentos Aleatorizados
Experimentos Aleatorizados
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally ...
Experimentos Cruzados
Experimentos Cruzados
Crossover experiments, also called the repeated-measurements design, is a study design in which all experimental units are exposed to all treatments in ...
Controles em Experimentos
Controles em Experimentos
When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more ...
Viés
Viés
Bias refers to any tendency that prevents a question from being considered unprejudiced. In research, bias occurs when one outcome or answer is selected ...
Cegamento
Cegamento
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control ...
Testes Clínicos
Testes Clínicos
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and ...
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