The next best situation is to reduce the difference between samples.

The end result is that the difference between samples is reduced.

They require less manual effort, give good sample recovery and are easy to clean between samples.

Stokes (1978) studied history books and found wide variation between 100-word samples of text.

Since both of these comparisons are between samples from the same set of similarly treated animals, one should expect no changes.

These varied between samples from the same test subjects.

However, we find that considerable differences in gene expression are observed between samples of the same tissue taken from different individuals.

The new studies show 20-fold differences between samples.

It is sometimes used, incorrectly, to mean sample variance - the difference between different finite samples of the same parent population.

This will ensure that the differences between samples are not due to errors in the lamp or camera.