Common nonparametric tests include Chi Square, Wilcoxon rank-sum test,
Kruskal-Wallis test, and Spearman's rank-order correlation.
Examples of non-parametric tests are Wilcoxon tests,
the Kruskal-Wallis test, and the Spearman's rank correlation.
Then he calls two army officers and tells them to get 200 soldiers, 70 horsemen,
and 200 spearmen ready to march to Caesarea.
However, many have also questioned Spearman's theories, in particular the simplistic nature of the‘g' concept
and whether intelligence can really be treated as a single entity.