Then, we conducted sensitivity analysis comparing the mean scale scores across age and gender among the complete cases, all of the available cases, and the imputed cases (coefficients and standard errors from 5 data sets were adjusted for the variability
between imputations according to Rubin's rule).
Coefficients and SEs for the variability
between imputations were combined using the method of Rubin.26
Not exact matches
Effect estimates across the five
imputations were averaged and standard errors were calculated accounting for both within -
imputation and
between -
imputation variability.19, 20
The strength of the association
between early breastfeeding experience and postpartum depression was similar in magnitude when comparing the complete case with the multiple
imputation analyses.
The
imputation system was introduced to ensure that taxpayers in effect only paid «top up» tax on dividends, being the difference
between the corporate rate and the shareholder's higher tax rate.
Given that we do not disagree with the results of the research on the faux «pause» — how could we, having contributed to it — and given that the disagreement
between Betts and us seems to boil down primarily to semantics and the
imputation of scientists» motivations, does it matter whether or not there is «seepage» into the scientific community?
There were no differences in either anthropometric measures at age 6 years or socioeconomic variables
between children with BMI data at age 4 years and those without it, and analyses including all children produced findings consistent with those obtained using multiple
imputation.
The level of agreement in the findings
between the listwise and multiple -
imputation approaches to the handling of missing data increases the robustness of the findings.
Multiple logistic regression models, with the use of multiple
imputation to account for missing data, assessed the associations
between probable DCD and mental health difficulties.
Similarly, the complete - case analysis implies that drinking alcohol is negatively associated with internalizing problems; after
imputation, that relation is insignificant and there is evidence of a significant positive association
between smoking and internalizing problems.