latent trait
Matemática
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substantivo
Contexto: "As a result, the so-called latent trait models have been developed and are used to estimate the parameter values associated with the human personality."
Fonte: ALMALEK, Deyab. Examinee Characteristics and their Impact on the Psychometric Properties of a Multiple Choice Test According to the Item Response Theory (IRT). In: Engineering, Technology & Applied Science Research. Vol. 11, n. 2, 2021.
Fonte: ALMALEK, Deyab. Examinee Characteristics and their Impact on the Psychometric Properties of a Multiple Choice Test According to the Item Response Theory (IRT). In: Engineering, Technology & Applied Science Research. Vol. 11, n. 2, 2021.
Termo equivalente: traço latente
Definição: "The term latent trait theory embraces a family of mathematical models.These models are statements of functional relations between observable variables and the underlying hypothetical trait constructs that give rise to the observable variables. Latent trait models consist of several elements: 1. There must be a stimulus variable, or set of variables, that is presented to individuals. These variables can be, for example, test items on an ability test or an achievement test, personality questionnaire items, or items on an attitude scale. 2. The items are presented to an individual, and they elicit certain responses that are observed and recorded.3. To enable the psychometrician to infer a person's status on the trait based on the observed responses to a specified stimulus variable, or set of stimulus variables, the hypothesized relationships between the observed responses and the underlying trait levels are formalized by an equation that describes the functional form of that relationship."
Fonte: WEISS, David J. New Horizon Testing: Latent Trait Test Theory and Computerized Adaptive Testing. Minneapolis: Elsevier Science, 1983.
Fonte: WEISS, David J. New Horizon Testing: Latent Trait Test Theory and Computerized Adaptive Testing. Minneapolis: Elsevier Science, 1983.
Definição em português: "O termo teoria do traço latente se refere a uma família de modelos matemáticos que relaciona variáveis observáveis (itens de um teste, por exemplo) e traços hipotéticos não-observáveis ou aptidões, estes responsáveis pelo aparecimento das variáveis observáveis ou, melhor, das respostas ou comportamentos emitidos pelo sujeito que são as variáveis observáveis. Assim, temos um estímulo (item) que é apresentado ao sujeito, e este responde a ele. A resposta que o sujeito dá ao item depende do nível que o sujeito possui no traço latente ou na aptidão. Dessa forma, o traço latente é a causa, e a resposta do sujeito é o efeito."