The chief modification of the method in adapting it for group testing was the supplying of three or four answers from which the subject should select the correct reply. This change makes the markings of the results quite simple, but it takes from the test itself some of its virtue as a measure of the richness of ideas possessed by the person tested. Instead of having to think out an appropriate answer, one needs only to read the answers printed and to use good judgment in selecting the one to be checked as “best.”
The Mentimeter form of the test, although superior in its length and arrangement to the military version, is nevertheless not yet ideal as an intelligence test. The simplest questions and answers that can be printed are too difficult for first- and second-grade school pupils to read and understand, while the most difficult questions and answers one could devise would not be general enough in their subject matter to be included in a “general intelligence” test. In other words, the range of ability that this test will measure is not so wide as that measured by some other Mentimeter tests, with the result that the speed of reading and of making judgments plays a larger part in determining the final score than it would in a perfect intelligence test. In spite of the large part played by speed, the test is a useful index of ability to learn in certain lines of work where rapid decisions on practical problems are necessary.
It is probable that the Practical Judgment test will be found more useful in the measurement of intelligence among school children and clerical workers than in the classification of general employees, although the reader may find unexpected relationships between this test and certain routine occupations. Reliance should be placed upon it only after it has demonstrated in actual trials that it has a close relationship to the special ability desired.
Its use in social gatherings as a form of entertainment will be greatest where each person marks the papers of some other member of the group and reports the judgments found incorrect. Most persons are surprised, when they come to look over their booklets carefully, to find how many foolish errors have crept into their records while working at high speed. In order to increase the number of imperfect records and thereby add somewhat to the amusement of the group, the examiner may announce and use two minutes as the time limit, and urge everyone to try to work all of the 24 questions in that time. The general confusion will be increased if the examiner signals the end of the first minute and the end of a minute and a half. Under such conditions, of course, no serious use can be made of the results obtained. The score on the test is not to be used seriously except where the instructions and procedure are exactly as specified below.
Directions for Giving the Test.
Candidates should be comfortably seated at a table or supplied with a convenient writing board. A well-sharpened pencil (or pen with ink) should be in the hands of each candidate before any blanks are passed out. The test booklets should then be distributed, the announcement being clearly made beforehand that “no one will be allowed to open the booklet or turn it over until the signal is given to do so.”
When each candidate has been supplied with a test booklet, title page up, the examiner should say: “Now, write your name on the blank following the word Name.” After a pause long enough to allow this direction to be carried out, the examiner should continue with a similar instruction for each of the other pieces of information required by the title page blanks. “Age at last birthday” should be insisted upon, if there is any question of reporting age in any other way. Group numbers and locations may be left blank where only small numbers of persons are being tested and where there is no probability of getting the papers from one place mixed with those from some other place. The name of the school, factory, or city will usually be sufficient for the blank headed “Location.”
After the necessary identifying information has been entered at the top of the title page, the examiner should ask the candidates to read silently the directions while he reads them aloud. He should then read slowly and distinctly:
“The following pages contain 24 questions and 4 answers to each question. You are to vote for the best answer to each question by making a check mark (✓) in the square that stands before it. The questions are not hard, and you will be allowed 3 minutes to check the best answers, but be sure to work carefully and rapidly. Vote only for the one best answer to each question. Turn the page! Go!”
At the end of exactly 3 minutes after saying “Go!” the examiner should call “Stop! Close your booklets and pass them to me.” All papers should be collected at once in order to avoid unfairness and cheating.