The phrase "a large variation among" is correct and usable in written English.
It can be used when discussing differences or discrepancies within a group or between multiple items or subjects.
Example: "There is a large variation among the test scores, indicating differing levels of understanding among the students."
Alternatives: "a significant difference among" or "a wide range among".
Firstly, the key design parameters and recommended values for these baghouse are presented, showing a large variation among sources.
Occasional peaks in abundance were observed on a single sampling site and time and a large variation among replicates.
It is however suggested than when corrected for size, there exists a large variation among individual knees regardless of gender or race.
Mesocotyl elongation displays a large variation among rice germplasm.
The concentrations of five secondary metabolites exhibited a large variation among different samples.
He also notes that there was a large variation among hospitals in the U.S. in the use of evidence-based medications and that this difference correlated strongly with patient outcomes – specifically, there was a 40% difference in mortality between the top 25% of centers and the bottom 25% of centers that correlated with better vs worse use of guideline-based treatments.
We used the coefficient of variation of mean GS score as a measure of a school's socioeconomic disparity (i.e. a high value indicated a larger variation among students at the school).
However, R values indicate that effects of event and gender had a somewhat larger impact on hindlimb flexion test results (0.16) compared to forelimbs (0.12), suggesting a larger variation among examiners for hindlimb flexion test results compared to forelimb results.
Regardless of the debate as above, researchers tend to acknowledge that a large variation exists among centenarians in physical/cognitive functions, disease conditions as well as psychological well-being [ 17, 19, 21, 22].
As a result, although the combined phase I MTS assays showed clear toxicity profiles of TiO2-P25, TiO2-A, TiO2-NB, and ZnO in RLE-6TN and BEAS-2B cells [see Supplemental Material, Figures S2 and S3 (http://dx.doi.org/10.1289/ehp.1306561)], a large variation existed among the laboratories, as shown in Figure 2A.
However, despite Williams and Cavanagh [91] finding a large variation in RE among 31 male distance runners, there were no differences associated with segmental leg lengths and masses.
