A 2-D cross-validation histogram for an accurate prediction exercise would show a high frequency of corresponding data and prediction values along a central region (indicating small imprecision), centred along the 1 1 line (indicating small bias).
However, the comparisons for the conditions of LBP in pregnant and postpartum women contained fewer than 400 participants, which indicated likely imprecision of results and a resultant downgrading of the level of evidence [ 31].
A sulfur ratio that exceeds the corresponding PM2.5 ratio indicates a) measurement imprecision, b) an indoor sulfur source, or c) overestimation of PM2.5 Finf, possibly due to the loss of volatile PM2.5 species as the PM moves indoors (Sarnat et al. 2006).
Moreover, the wide confidence intervals in some analyses indicate a high level of imprecision in the observed odds ratios.
The very significant differences (P < 10−16 and P < 5 × 10−8) in genetic risk load in the two studies indicate that there are factors other than the imprecision of GRSs leading to their opposite directions.
However, although the effect estimates for PCBs were sometimes quite large, they were also measured with extreme imprecision, as indicated by the very large CIs.
Furthermore, contrary to the other groups, AD patients generally failed to maintain a constant timing criterion over the same bisected duration, as indicated by the substantial imprecision in making both repeated short and long temporal judgments.
Imprecision (as indicated by a wide confidence interval) also lowers the confidence with which chance can be ruled out as a factor shaping any observed differences in outcomes between compared groups, and consequently our confidence in an estimated effect.
Existing approaches in the literature indicate that, computation of different data forms are closely linked with the level of imprecision, which the data already have.
