Exclusion criteria Participants/population- In vitro studies, animal studies, sample size <5, no control.
Studies' sample sizes were correlated negatively with CMT prevalence (ρ = -0.250, P = 0.009).
The sample size was predetermined as similar to the previous studies' sample sizes [25],[27],[32].
The majority of studies sample from the nasopharynx, but the choice of swab and swab transport media is more variable between studies.
Limitations were described relating to the study design (and leading to problems of selection bias), and in some studies sample sizes were small.
We discovered that many studies sample populations that include racial/ethnic minority students, however few of them disaggregate evolution acceptance by race/ethnicity.
Because the studies' sample members were assigned at random to one research group or the other, the two groups, on average, were similar on all personal characteristics at the start of the study.
A possible cause for this apparent discrepancy might come from the fact that, in contrast to other NRIXS studies, sample isotopic enrichment (56.95 vs 55.845 g/mol of natural Fe) has been explicitly accounted for in density determination in the analysis of Murphy et al. (2013).
In order to achieve adequate statistical power for population-based studies, sample sizes are considerably larger than the capacity of an individual microarray.
As is typical of field studies, sample sizes varied greatly, resulting in numerous individuals or broods for which I had only partial information.
Conflicting evidence may have arisen from a large number of factors such as the type of association studies (e.g., familial versus population studies), sample size, ethnic variation, formulation of statistical tests, sample representation, behavior measurement and statistical controls included.
