'changes in the variance' is correct and usable in written English.
You can use it when you want to describe a quantitative difference between two or more measurements. For example, "The results showed significant changes in the variance between the two sets of data."
Changes in the experimental design can induce changes in the variance of estimated responses.
The general hidden variable appears to capture changes in the variance of different groups of species biomass.
This is in contrast with the AW-XWVD where it maintains reasonably insignificant changes in the variance of IIB-phase estimates for all range of frequency.
The changes in the mean of hydrologic states and fluxes by the end of the 21st century are statistically robust, whereas changes in the variance are not found to be statistically significant.
With such an approach, a posteriori uncertainties tend to be overestimated towards recent epochs (when the data are of better quality), and time changes in the variance of some unmodeled signals are ignored (when they should be accounted for through the data error covariance matrix).
Our studies suggest that changes in the variance of log-transformed gene expression levels may have functional relevance.
The changes in the variances for different fault parameters indicate that all the parameters were basically well determined (Additional file 1: Fig. S2).
Changes in the variances were evaluated across all generations.
The results from the simulations were robust, especially to changes in the variances of the spatial factors.
The assessment of changes in the variances of glucose, insulin, and GLP-1 concentrations over time provides more information than solely assessing the mean change of their concentrations.
Thus, by bounding the relative change in the variance, one can define the diffusion stopping rule.
