The advantage of the present study is the size of the study population which adds statistical power and credibility to the outcome of the analyses.
The finding that the associated risk reduction is robust using multiple statistical approaches gives credibility to the observation of reduced CVD risk.
However, only large, well-conducted population-based studies have the statistical power and credibility to resolve the issue, and those of even several hundred cases and control individuals have little chance of detecting such rare, modest risks [ 11].
This serves our purposes for a consistent statistical estimator: having credibility intervals that include zero, for instance, a [−0.01, 0.02] interval, means that we do not automatically assume that every component a, b, … , ϕ w contributes positive, nonzero information to the prediction of Y i.
Calculations of credibility intervals, statistical analyses, and graphical output were generated using the R statistical programming language [ 40], utilizing functions in R-packages APE [ 41], PHANGORN [ 42], and PHYLOCH [ 43].
Beyond the type of design or the statistical analysis applied, the credibility of a research study lies in the compatibility of its results with the intensity that the reader could accept that the phenomenon studied might have from a biological point of view.
First, the most obvious superiority is that there is substantial sample size to improve the credibility for statistical analysis.
Macroscopic or microscopic quantification of a structure increases accuracy by generating numerical data that can be used for statistical comparisons, thus giving credibility to the study [ 5, 6].
We are aware of the problems with false-positive findings, which are influenced by the significance level, statistical power, and prior credibility of the association tested (Wacholder et al. 2004).
Strengths of the study include the study design itself as well as appropriate statistical power; and the credibility of the decision analytic model and the data sources used and the cost calculation methods.
