2007
DOI: 10.1590/s1516-35982007001000031
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Abstract: -In certain areas of animal research, such as nutrition, quantitative summarizations of literature data are periodically needed. In such instances, statistical methods dealing with the analysis of summary data (generally from the literature) must be used. These methods are known as meta-analyses. The implementation of a meta-analysis is done in several phases. The first phase defines the study objectives and identifies the criteria for selecting prior publications to be used in the construction of the database… Show more

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Cited by 35 publications
(20 citation statements)
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“…In such instance, the statistical model can include only one of the two predictors [19]. The deletion of one or more collinear variables improves the accuracy and robustness of the prediction models.…”
Section: Deletion Of Redundant Variablesmentioning
confidence: 99%
“…In such instance, the statistical model can include only one of the two predictors [19]. The deletion of one or more collinear variables improves the accuracy and robustness of the prediction models.…”
Section: Deletion Of Redundant Variablesmentioning
confidence: 99%
“…Collinearity implies that the effect of one predictor cannot be uniquely identified (i.e., is nearly confounded with the effect of another predictor). For instance, the statistical model can include only one of the two predictors (St-Pierre, 2007). According to Weisberg (1985), the deletion of variables with small | Bj |/ б in the regression models would be desirable.…”
Section: Resultsmentioning
confidence: 99%
“…Each study of the database was designated as a random effect in the statistical model used, as suggested by St-Pierre (2007). The data compiled in the metaanalysis were subjected to Levene's test to verify the equality of variances.…”
Section: Methodsmentioning
confidence: 99%