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The only alternative to model testing is model fit indexing, and Barrett's overall assessment of indexing was not particularly gentle: "In fact, I would now recommend banning ALL such indices from ever appearing in any paper as indicative of model "acceptability" or "degree of misfit"." [ 8]:8]1.
A Pearson correlation coefficient 0.974 between simulated and experimental data is indicative of model adequacy.
Pertaining to R2 that is indicative of model fitting, its value was 0.94 which means that 6% of the total variations were not explained by the model.
In addition, the weights for these models were not high, particularly for the AIC and AICc (see Table 1) indicative of model selection uncertainty.
The interpretation of AUC values is consistent with those generated in other contexts, with possible values ranging between 0 and 1, and values greater than 0.50 indicative of model output that is more useful than randomly generated risk scores.
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Values greater than 0.95 / 0.96 for these indicators are indicative of good model fit; 3) the Weighted Root Mean Square Residual (WRMR): Yu [49] recommend that a model with a WRMR of less than 1.0 indicates good fit; and 4) the chi-squared (χ 2 ) test.
SRMR can range from 0 to 1, 20 where 0 is indicative of perfect model fit and values 0.08 or smaller indicate an acceptable model fit.
The condition numbers of the base and final models were 22.2 and 32.5, respectively, indicative of each model's stability.
We selected the Root Mean Square Error of Approximation (RMSEA) in order to evaluate the model's goodness of fit, with measurements below 0.08 indicative of good model fit [ 52].
For example, cigarette prices influence consumption, which could be indicative of either model type, although impulsivity seems to influence current smokers, which is not consistent with the rational model (Sloan and Wang 2008).
This is perhaps indicative of the model not fitting the data as well, for instance the logistic model may not be the best fit in this scenario, or that the lack of census data on cases might be more problematic here.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com