As shown by small sampling errors of the estimates, allele frequencies can be precisely estimated with a modest sample size (400).
But Kari Stefansson, a geneticist who has looked for determinants of longevity among the Icelandic population, said of the current study that he was "amazed at how many loci of genome-wide significance have been found in a modest sample size".
Those results are "remarkable" for a modest sample, according to a commentary in the same issue.
For this study, a modest sample to item ratio of 8.5 1 (341 participants, 40 questionnaire items) was achieved (MacCallum et al., 1999).
A modest sample size at level 2 (77 classes) impairs the measurement model fit of teachers' work enjoyment, but using manifest variables to avoid these constraints would have simply ignored measurement errors.
I have been exploring different regions of the map in Figure 13, but even though the coverage is still only a modest sample, it would take a book-length publication to present the all findings, so all I can do here is select a few examples that I hope will indicate the nature of the work.
The additive genetic effects in both generations can well be estimated with a modest sample size (say 400) for a small heritability (0.1).
Because of a modest sample size used, our analysis will focus on a three-SNP analysis, although the model can deal with any number of SNPs.
It displays adequate power for the detection of high-order epistasis with a modest sample size; for example, 400 cases vs. 400 controls.
A modest sample size (100) and heritability (0.1) can assure adequate power for the detection of such interaction effects (Table 4).
