Sentence examples for between the random effects from inspiring English sources

Thus the correlation between the random effects was assumed to be zero a priori, and the costs and effectiveness were therefore assumed to be independent given the observed background information and the random effects.

Finally, we apply the Hausman specification test to select between the random effects and fixed effects estimators of Eq. 8. Most variables for this study were selected from the OECD health data 2007 [18].

Not all associations between the costs and effectiveness could not, however, be explained by the observed confounders only, thus the hierarchical model showed clear non-zero correlations between the random effects.

The correlation coefficient (95 % CI) between the random effects was estimated to be −0.855 (−0.887, −0.815).

The choice of models is between the random effects and mean main effects models (i.e. (1) and (2)).

Also, the correlation between the random effects is close to the true value for the SDE model.

When I >50%, suggesting very large heterogeneity between studies, the random effects model was used and a sensitivity analysis was planned to evaluate heterogeneity among studies.

Statistical methods, and R computer software, are available to compute exact confidence intervals for the residual between-study variance under the random effects model for meta-regression.

However, if we believe there is true heterogeneity between the trials, the random effects model would be more appropriate.

This model assumes that the only cause of correlations between any of the random effects in the reduced model is the phenotypic recursion.

39 40 41 In the presence of high variance between studies, however, the random effects analysis has considerably less power to reject the null hypothesis of no association.