Here’s an example.
The second group included 40 cisgender women between the ages of 20 and 30 years (M = 24.2, SD = 2.1, Mdn = 25.1), all of whom had emigrated from El Salvador; had at least 12 years of education; had been permanent residents of the United States for at least 10 years; and lived in Washington, DC.
How to Report Participant-Related Statistics in Parentheses With Statistical Symbols?
Here is a list of useful (frequently used) statistical abbreviations and symbols that are especially useful for providing participant information (or any basic statistics).
| M or X bar | sample mean; arithmetic average |
| n | number of cases (generally in a subsample) |
| N | total number of cases |
| s | sample standard deviation with the denominator of square root (n – 1) |
| s2 | sample variance (unbiased estimator) with the denominator of n – 1 |
| S2 | sample variance (biased estimator) with the denominator of n |