While many have long viewed DFA as being a supplier of
index funds (IFA
included), the commonly held understanding of the term doesn't easily
fit DFA, leaving enough ambiguity to give rise to the notion that DFA is actually beating an appropriate
index.
Fit indices used to evaluate the model included a χ2 goodness - of - fit test (nonsignificant values indicate good fits), the comparative fit index (scores of > 0.95 indicate better fits), the root mean square error of approximation (values of < 0.05 indicate good fits), and the standardized root mean square residual (values of < 0.08 indicate good fits).43, 44 Missing values were imputed through multiple imputation by using functions in the missing data library in S - Plus (Insightful Corp, Seattle, WA).45, 46 The combined data for the cross - lagged / survival model converged more quickly with 15 imputed data sets than did the model that used a likelihood - based approach to missing da
Fit indices used to evaluate the model
included a χ2 goodness - of -
fit test (nonsignificant values indicate good fits), the comparative fit index (scores of > 0.95 indicate better fits), the root mean square error of approximation (values of < 0.05 indicate good fits), and the standardized root mean square residual (values of < 0.08 indicate good fits).43, 44 Missing values were imputed through multiple imputation by using functions in the missing data library in S - Plus (Insightful Corp, Seattle, WA).45, 46 The combined data for the cross - lagged / survival model converged more quickly with 15 imputed data sets than did the model that used a likelihood - based approach to missing da
fit test (nonsignificant values indicate good
fits), the comparative
fit index (scores of > 0.95 indicate better fits), the root mean square error of approximation (values of < 0.05 indicate good fits), and the standardized root mean square residual (values of < 0.08 indicate good fits).43, 44 Missing values were imputed through multiple imputation by using functions in the missing data library in S - Plus (Insightful Corp, Seattle, WA).45, 46 The combined data for the cross - lagged / survival model converged more quickly with 15 imputed data sets than did the model that used a likelihood - based approach to missing da
fit index (scores of > 0.95 indicate better
fits), the root mean square error of approximation (values of < 0.05 indicate good
fits), and the standardized root mean square residual (values of < 0.08 indicate good
fits).43, 44 Missing values were imputed through multiple imputation by using functions in the missing data library in S - Plus (Insightful Corp, Seattle, WA).45, 46 The combined data for the cross - lagged / survival model converged more quickly with 15 imputed data sets than did the model that used a likelihood - based approach to missing data.
Several
indices of model
fit were inspected,
including the chi - square statistic, the chi - square to degrees of freedom ratio, the comparative
fit index (CFI), the root mean square error of approximation (RMSEA), and the standardised root mean residual (SRMR).
Evaluation of model
fit was based on multiple criteria,
including the theoretical meaningfulness of the model, absolute -
fit indices (how well a model
fits the data, without comparing to a baseline model), incremental
fit measures (how much better the model
fits than a baseline model) and model cross-validation (how the model can be replicated with an independent sample).