However, the kernel method of smoothing also involves a degree of subjectivity, so that the relatively minor differences in peak times noted may only reflect chance variations (or differences in statistical methodology) and not systematic differences between Singaporean and Italian women.
Since correlations only reflect the strength of relation between ratings, but do not reflect systematic differences, the T-tests appeared to be more meaningful in determining rater agreement.
There was some variation in duration of disease, lower swollen and tender joint count, and CRP across studies, but we did not observe systematic differences in the distribution of disease duration across different types of direct comparisons.
Excluded observations (n = 430) were due to missing data on the outcome, exposure, or main analysis covariates and did not show systematic differences regarding exposure, outcome, or covariates (data not shown).
But we found that this will not cause a bias in the results, because there will not be systematic differences between the two groups.
Theiler et al. reported reliability coefficients similar to those in our study but used Pearson's correlation coefficient which does not incorporate systematic differences between raters [ 15].
In addition, our sensitivity analyses do not reveal systematic differences in the associations between TLF and working hours for different groups.
You know, if you're a manager, and you treat it that way with every employee, you probably won't see systematic differences arising, at least not from the kinds of differences that arise from not getting good feedback.
We do not observe systematic differences between immigrants and natives in this respect.
Anterior chamber depths of fellow eyes also did not show systematic differences with respect to the various experimental eye groups.
