Several asymptotic results concerning the proposed procedure are given along with simulation results to assess its performance in moderate sample size situations.
Several asymptotic results concerning the proposed procedures are given along with simulation results to assess their performance in moderate sample size situations.
This means that we are in the realm of moderate sample size and moderate dimensionality, for which VB is accurate (see Section 3.3).
The simulation study shows that for a moderate sample size and selection probability, the IPW estimator and AIPW estimator perform better than the complete-case estimator.
For moderate sample size, the situation is in between the two extreme cases, and the weight function is selected by minimizing a variant of the information criterion derived as an estimate of the expected loss.
Overall, we suggest that this statistical method is a potential approach in environmental monitoring surveys for exploratory modeling of data sets with a large number of variables, but a moderate sample size (n = 20 50).
This step allowed us to have a moderate sample size (73 genes).
Despite our moderate sample size, we appear to have identified biomarkers that significantly correlate with the presence of breast cancer.
Given the moderate sample size, we used balanced sampling to ensure a similar proportion of responders and non-responders in both sample sets.
The main strength of the present study was that we explored the combining effect of those susceptible genes in both a case-control study with a moderate sample size and a 3.5-year follow-up study.
To limit potential confounding false positive associations due to moderate sample size and population stratification, we used software as described by Wacholder et al. [18] to filter out false-positive associations by setting very rigorous prior probabilities.
