Evening Republican, Volume 19, Number 93, Rensselaer, Jasper County, 20 April 1915 — Test for Mental Deficiency. [ARTICLE]

Test for Mental Deficiency.

A Belgian physician. Doctor Demoor, has been making observation* on the capacity of different people for judging which of two weight* is the heavier, and ha* satisfied himself that while ordinary people, especially children, fail to appreciate a small diference, the reverse is the case with the imbecile, idiotic and half-witted. He prepared two bottles, differing ta size, partly filled with * heavy mineral but covered all over with black paper and exactly equal in weight t These he banded to 380 children of from six to fifteen years of age. Of these 370 judged one bottle to be the heavier. The other ten said the two were the same weight These ten children were all abnormal or degenerates.