The phrase "a significant difference then" is correct and usable in written English.
It can be used when discussing a notable distinction or change that has been established or concluded in a previous context.
Example: "After analyzing the data, we found a significant difference then in the results between the two groups."
Alternatives: "a notable difference at that point" or "a considerable difference subsequently".
If you start to think that the smallest movement makes a significant difference, then every single person can take part and gain the powerful benefits of being physically active.
If analysis of variance revealed a significant difference, then Tukey's pair-wise multiple comparisons test was performed for subsequent identification of group differences.
If the majority of replicates indicate a significant difference, then the expected value of the test statistic is significant, and thus we treat the difference as significant.
If the global test revealed a significant difference, then the Wilcoxon test was used to define at which time point a significant change occurred.
If there was any significant difference then the Wilcoxon signed-rank test was used to compare the results between 2 dependent groups.
If this test suggested a significant difference, we then performed a pairwise Wilcoxon rank sum test to determine which diet phases differed.
When this test showed significant differences, then the exact P-values were determined using the Mann-Whitney U-test.
If the overall ANOVA revealed significant differences, then pairwise comparisons between groups were performed by Newman Keuls multiple comparison test.
If a significant difference was found, then Tukey's multiple comparisons were used.
We identified voxels showing a significant difference between ARs and then tested for a linear increase of the peak BOLD response as a function of AR.
If the Kruskal-Wallis test shows a significant difference between the groups, then pairwise comparisons were used by employing the Mann-Whitney U Tests.
