Scores from 0 to 10 indicate Inferior Ability Scores from 11 to 20 indicate Low Average Ability Scores from 21 to 30 indicate Average Ability Scores from 31 to 40 indicate High Average Ability Scores from 41 to 50 indicate Superior Ability MENTIMETER NO. 15 WORD DISCRIMINATION _Character of the Test._ Intellectual ability has usually been attributed in the greatest degree to those people who were best able to use their native language. This test is calculated to measure the ability of individual candidates to discriminate between the meanings of different words. Insofar as ability to draw distinctions between similar words can be taken as a measure of intellectual capacity, this test will be found useful. It is quite certain to be entertaining as a social diversion and distinctly useful as a measure of the general familiarity of any child in the public schools with the English language. Industrial and commercial establishments may very well find that it has a distinct relationship to the kind of intelligence it would pay them to employ in certain parts of their organization. There is no simple way of converting this test into a group test because of the added complexity of the problem which is presented when candidates are asked to write their answers. It is very much simpler to explain the difference between two words than to write out the explanation. It is recommended that this test be given in a quiet place where no persons other than the examiner and the candidate are present. This rule, of course, will not apply when the test is used as a parlour game. _Directions for Giving the Test._ The examiner should use the regular printed leaflet which contains the list of words to be explained. On the title page, he should enter such facts about the candidate as will identify him and satisfy the purposes of the investigation. The word list should not be shown to the candidate at all. The examiner should make a notation on his word list showing just what difference was mentioned by the candidate for each pair of words. When the examiner has put the candidate at his ease and is ready to begin the test, he should read the following directions: “I have a list of twenty-four pairs of words. I shall read one pair at a time, and I wish you to tell me what differences you know between the two things mentioned. First, what is the difference between a bird and a fish?” If no answer is given within half a minute, the examiner may say: “You know what a bird is, do you not? You know what a fish is, don’t you? Well, what is the difference between a bird and a fish?” No additional help of any sort may be given and not more than thirty seconds should be allowed after the second asking of the question. The only formula to be used is: “What is the difference between —— and ——?” _What is the difference between_ 1. A bird and a fish?