Sentence examples for between groups was small from inspiring English sources
The difference in performance between groups was small (on average 1.3°) which may have been a consequence of testing relatively mild PD patients.
The mean within-region absolute difference in DNA methylation between groups was small, in all cases less than 1%%.
The absolute difference in global DNA methylation between groups was small, but in the same order of magnitude as observed in other studies [ 16, 21].
Despite this, we still found glucocorticoid treatment was associated with poorer glycaemic control and higher total cholesterol, although the magnitude of difference between groups was small.
The difference in mean progression between groups was small but significant and was mainly due to difference in joint space narrowing, because progression in erosion scores was similar.
In contrast to other studies, 3 6 the patients with low health literacy in our study were slightly younger than the patients with adequate health literacy, although the difference between groups was small and should be interpreted with caution.
In this trial, a statistically significant impact on math test scores was found by intention to treat analysis among Chinese children randomized to receive free glasses, although this difference between groups was smaller than the prespecified difference that the study was powered to detect.
Conclusions The provision of free glasses to Chinese children with myopia improves children's performance on mathematics testing to a statistically significant degree, despite imperfect compliance, although the observed difference between groups was smaller than the study was originally designed to detect.
As for differences between races and social classes in IQ and achievement, Plomin steers clear, arguing that differences between groups are small compared to differences between individuals within them.
