error variance
[ˈɛrər ˈvɛriəns]
nounpl: error variances
variância do erro
1. In statistics and regression analysis, the portion of the total variance in a dependent variable that cannot be explained by the independent variables in a model; the variance of the residuals
The researcher calculated the error variance to determine how much of the variation in test scores was unexplained by study hours.
O pesquisador calculou a variância do erro para determinar quanto da variação nas notas de teste era inexplicável pelas horas de estudo.
2. The variance associated with random errors or noise in a measurement or experimental system
The instrument's error variance was reduced by calibrating it more precisely.
A variância do erro do instrumento foi reduzida calibrando-o com mais precisão.
This is specialized statistical terminology used universally in academic, scientific, and data analysis contexts across English and Portuguese-speaking countries. It is a fundamental concept in econometrics, psychology, and quantitative research methods taught in universities worldwide.
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