CHAPTER XTHE MENTIMETER TESTS

Tests of the abilities of human beings may be classified upon a great many different bases. It is possible, first of all, to classify them according to the qualities of mind and body which they measure. The reason it is difficult so to classify tests of mental ability is that the mind refuses to be cut up into different parts, each one responsible for a specific characteristic. No test can be solved by the use of one and only one group of intellectual faculties. The results obtained in any mental examination are the complex effects of an immense number of different characteristics. No attempt has therefore been made in the classification of the Mentimeters to say that one measures imagination, another measures attention, and another some other quality. Almost every quality enters to some degree in each test.

It is possible to classify tests according to the subject matter which they contain. The Mentimeter tests are so arranged, where it is possible, as to cover a very wide range of subject matter.

It is possible to classify examinations according to the activity required of the candidate being examined. A number of the Mentimeter tests call forcompletinga series of objects or ideas, while a number of others call formemoryof a certain sort, and still others requirediscriminationbetween certain differing elements. These differences in the activity of the candidate examined, are not, however, the chief distinctions to be made between the tests.

It is possible to classify measurements according to the number of candidates that may be examined at the same time.Some tests cannot be given readily to more than one person at a time, while other tests can be given to several at the same sitting. In so far as possible, the Mentimeter tests are so arranged that they can be given to large numbers at the same sitting. This makes for economy of time and of effort on the part of the examiner.

It is possible to classify tests according to physical characteristics of the candidate examined, such as tests for infants, tests for children, and tests for adults, or tests for the blind and tests for the deaf. The first test in the Mentimeter series is for infants while the remainder of the tests are intended to measure older people.

Tests may further be classified according to the language capacity of the candidates who are examined. Certain of the Mentimeter tests are for non-English-speaking persons primarily, while others are primarily for those who speak English, and still others for those who read English.

The Mentimeter series of examinations which follows consists of thirty different tests, the majority of which are modifications of tests which have been used previously elsewhere. The first test in the series is to be used as an individual test of very young children. The blank provided furnishes brief suggestions, at each point, of what the procedure should be, and also furnishes a place for the examiner to record the result of his questions and observations.

Each examination booklet in the Mentimeter series has on its title page blanks as follows:

NAME______________________________________AGE AT LAST BIRTHDAY_______LOCATION_______

NAME______________________________________

AGE AT LAST BIRTHDAY_______LOCATION_______

The space headed “Location” is to be used to indicate the business or industrial organization or the department of the candidate being examined; or the grade, class, and school of a school pupil. These blanks should always be filled out before the examination begins.

At the middle of the page directions are frequently given with examples to serve in explaining concretely just what the nature of the test is going to be. In the lower right-hand corner of the title page there appears a blank, preceded by the words “Total Score.” This is to be filled out by the examiner after the candidate has marked his paper and after the examiner has scored the results.

Tests numbered from 2 to 10 are classified as tests for non-English-speaking persons. They were designed originally, and can best be used, as group tests, although the directions given on the following pages for these members of the Mentimeter family are usually in terms of an individual examination. If it had been possible to prepare and furnish with this book large charts on which the explanatory samples could be exhibited and the pantomime instructions clearly demonstrated for a group of people at the same time, the instructions would have been printed as for a group examination. Within the confines of a title page of a test booklet only small examples can be presented, and therefore the instructions are for measuring one individual at a time. Any employer, teacher, or supervisor who plans to make use of these tests for non-English-speaking persons would do well to prepare the demonstration material in enlarged form in order to use it in giving the tests to groups of individuals at the same time.

In giving a group test it is practically always necessary to obtain the identifying information called for on the title page before the booklets are opened or turned over. There is a distinct tendency for candidates to try to glance at the pages which follow unless specific directions are given as the papers are distributed that this must not occur.

The procedure in giving Mentimeters 2 to 10 to people who can understand and even read English is very little different from the procedure to be used with the foreign-language-speaking groups.

Mentimeters 11 to 15 cannot be given as group tests because of the great amount of writing which this would entail. Group tests are most efficient when candidates are required to do nothing other than check the correct answers without having to write anything.

Mentimeters 16 to 30 may be given as individual examinations, although they are planned as group examinations and the results obtained from their use as group examinations will be superior to the results obtained from their use as individual examinations.

In giving all of these tests it is very important that the printed forms prepared by the publishers be employed and that the directions which follow be carefully observed. The stencils furnished with the printed test booklets make it possible for a clerk of average mental capacity to mark and score the results of these examinations with great rapidity and with just as much accuracy as could be obtained by specialists working without such stencils. These stencils and the group method make psychological examinations economical of administration.

The list of Mentimeter tests is as follows:

Test for Infants

Tests for Non-English-Speaking Persons

Individual Tests for English-Speaking Persons

Group Tests for Persons Who Read English

The mental capacity of adult persons is indicated rather accurately by the number and variety of things they havelearned from the school of life, omitting from the count so far as possible those things directly taught by the formal schools. The intellectual capacity of an infant is likewise indicated roughly by the changes which his brief experience in life has brought about in his ability to control himself and his immediate surroundings. At birth the child is practically without control of his own body, except for certain sucking reflexes, certain crying reflexes, and the reflex which causes it to grasp with its fingers or toes the finger or pencil which is brought into contact with them. These reflexes can hardly be said to be a part of the child’s control of his own body, for the child could not avoid obeying them if he so desired. The new-born infant is practically helpless even so far as his own body is concerned. Any degree of control he may later develop over his body or over other things outside is attained because he has a system of nerve and brain cells capable of forming connections and being modified by these connections and their results.

The degree to which the child’s nervous system is organized and supplied with potential connections by inheritance is reflected very early in life by the quickness with which it learns to control itself and its immediate environment. The most ready method of testing this inherited capacity is therefore to determine at any particular age just how complex and adequate a system of control has been developed. The tests for measuring infants and young children consist, then, in those performances under specified standard conditions, which are typical for children at various ages.

The Mentimeter for young children is based directly upon the findings of Prof. Lewis M. Terman and his students in their investigations of children from three to twenty years of age. This investigation was so carefully devised and executed that to improve on the product, the Stanford Revision of the Binet tests, would be almost impossible. The tests for children three and four years of age presented in the following pages are therefore not claimed to be new or original with the presentauthors, who hereby express to Doctor Terman their admiration for his excellent contributions in the field of psychological measurements. The tests here suggested for children under three years of age are modifications of those suggested by Doctor Kuhlmann. All investigators in this field are, of course, indebted to the pioneers, the French psychologists, Binet and Simon.

The method of this test series consists in putting the child into a well-defined situation and observing how he acts. The situation may consist partly in words or other noises impressing themselves upon his ears, or it may consist largely in visual sensations, or even in sensations of physical well-being in his own body. Under a given situation a normal child of a given age or older will act in a certain standard way. The measurement then is in terms of the age for which a given child’s reactions are typical.

The test can best be given by one who is fairly familiar with the infant to be tested, although interest in having the child make a good showing should never be allowed to change one’s judgment of the facts as to the child’s performance. Another danger of too great familiarity is that the examiner may, without intention to do so, drill the child upon those things which are later to be required in the test. In so far as the parent knows what performances are to be included in the tests there is real danger that the child will be “coached up” on these things, even at as early an age as six months.

A very large part of this test must be given informally. It will be necessary to spend considerable time with each child examined in order to make certain that the reactions observed are not merely random movements which are not typical. For the tests of children three years of age and above the reader should very carefully study the detailed directions given by Professor Terman in his book, “The Measurement of Intelligence,” published by Houghton Mifflin Company, if scientific accuracy of results is necessary. The materials called for may be secured fromC. H. Stoelting and Company, 3037 Carroll Ave., Chicago. The directions given below are intended to be elementary and to indicate what is typical of children at each age rather than to serve as a perfect guide for the most scientific examinations.

At the age of three months an infant should be able to coördinate his eyes; that is, to direct both eyes in the same direction and to move them simultaneously. When bright objects are brought into his field of vision and moved slowly from one side to the other, he should be able to follow with his eyes. As a matter of fact, many infants have attained this degree of control within the first week of their lives, but lack of control to this extent at the end of three months is an indication that special medical attention should be sought.

For several days after birth the infant does not ordinarily hear any of the sounds or noises which occur in his vicinity. By the time he has become three months old, it should be apparent, from the sudden start or scream of the child when a door is slammed or someone in his neighbourhood suddenly claps his hands, that the child actually hears these noises. The average child at three months has become so familiar with life and its evidences that he will be able to turn his eyes in the direction of such noises as the opening of a door or the sound of footsteps near his bed.

The first evidences of the child’s recognition of sounds or sights are very difficult to interpret because they consist almost entirely in awkward, random moving of the hands and feet. Gradually the child develops some control over these movements and by the age of three months should be able to move his hand, or a toy in his hand, directly to his mouth without striking other parts of his body or face in the process. The early tendency of the infant to curl his fingers about a pencil or rattle which is placed in contact with them seems almost to disappear during the first month, but by the age of three months the child is againable to grasp such objects sufficiently to hold them for periods ranging from thirty seconds upward.

The control of his body has so improved by the time he has reached the age of six months that the average child can balance his head without support for several minutes. It is usually possible also for the child to sit in a chair or on the bed with the support of pillows and bed clothing for as much as ten minutes. Occasionally, of course, the child will be able to sit alone as early as six months, but it is not wise to encourage this practice. The lack of ability to sit when supported at the age of six months is not necessarily an indication of lack of intellectual power but may be due entirely to physical weakness.

Not only has the child at six months arrived at the stage where he can balance his head and sit quietly when supported, but he has usually begun to try to assist himself in various ways. Very frequently this attempt at self-help will be evidenced by pulling movements intended to bring him to a sitting posture when a hand is offered to him. There is no hesitation in the ordinary child at six months in his reaching out for toys or for a hand which is held toward him. Very frequently it will be observed that such a child puts out its hand to catch itself if it is beginning to fall from a sitting posture.

The child has usually begun to show signs of pleasure and displeasure long before he has reached six months. This phase of development may be indicated by his playing longer and more persistently with one toy than with any other. It may be shown by much more animated activity when certain familiar individuals are present than would be evidenced in the presence of others equally well known. Very frequently children at this age indulge in amused laughing aloud when bounced on the bed, or when some well-known individual indulges in strenuous exercises accompanied by vociferous exclamations while the baby is watching.

One Year

By the time a child has become twelve months old it will be possible to teach it many little tricks and movements of a simple nature. The child seems to imitate almost spontaneously the actions which are often repeated by its parents or nurse. Six to twelve trials should be sufficient to teach the average infant of one year how to “wave bye-bye” when told to do so, or how to hold its hands above its head when asked “How big are you?” or to hide its face behind its hands or behind one of its covers when someone exclaims “Peek-a-boo.”

Some children never learn to creep before learning to walk. As a matter of fact, it seems fairly certain that the child who creeps rapidly may thereby postpone learning to walk. At the age of one year a child should be able to stand beside a chair without other assistance than the support given by the chair, or it should be able to creep very rapidly toward its toys or any other desired objects. Frequently, of course, children have learned to walk fairly well by the time they have attained twelve months, but this is rather unusual and is not particularly an indication of the degree of mental capacity.

The child of one year understands many common words applying to frequently observed objects which have been repeatedly called to his attention. When asked “Where is the dog?—where is the ball?—where are the flowers?” and such questions the average infant will turn its head and look toward the object mentioned, sometimes pointing, although this is somewhat unusual.

Simple commands such as “Lie down! No-no! Spit it out!” and the like, can be understood and are usually obeyed by children of this age.

The speech of a child at this age is of course very simple, consisting of one syllable words, usually repeated. Such expressions as “ma-ma,” “bye-bye,” “da-da,” “go-go,” may be expected in the average child. It is unusual for an infant tocombine two such expressions into a crude sentence at this age.

The child at one year quite frequently has begun to attempt manipulation of his environment as well as of his own body. Very frequently this will be observed in shouts or exclamations accompanied by looking or even pointing to objects which his familiars have previously pointed out to him, such as dogs, cats, trains, carts, etc. These objects will ordinarily not be named by the child, although peculiar sounds fitting each one may frequently be distinguished. Another manifestation of this same attempt at altering his environment will be the crying in which the child will indulge when he desires to change his resting place or to have something to eat.

By the time a child has become two years of age its speech has developed to such an extent that it will be able to name, although frequently not with clearness and distinct pronunciation, many of its toys and articles of food. “Milk,” “rice,” and “cookie,” are examples of the most frequently named objects. Many children have by this age also progressed to the point where two or three or more words may be joined together to form a crude sentence. There are on record children who by two years of age were able to frame fairly good sentences and even to read from simple books, but such records are very unusual.

At this time the child should be able to distinguish pictures of familiar objects, such as dogs, cats, horses, men and boys. This will be manifest not only in the child’s being able to name the objects to which other people point in the picture, but when asked, “Where is the dog?” the infant should be able to point to it if the picture is at all clear.

Simple commands should be thoroughly understood and the well-trained infant will be able to obey without much delay such directions as “Put the ball in the basket,” “Close the door,” “Bring me the doll,” and “Show me the book.”

The average child at two years of age has become distinctly aware of other children as persons more nearly related to itself than are the adults with whom it is ordinarily associated. This reveals itself in imitation of the actions of other children, such as waving the arms when other children do so, hiding the face against the wall when other children are playing hide and seek, and stepping rhythmically when other children dance.

By the age of two years the average child can distinguish accurately between that which is food and that which is not fit for eating. The wrapping from candy or cookies or other well-liked food will be removed or torn away before an attempt is made to eat the food. Frequently this will result in great annoyance when the child opens sacks and packages to which he is not entitled.

The child at this age has usually learned to walk quite erectly without hesitation to any desired location. If the child is placed upon a “kiddie-kar” his first reaction is to run it backward, but by the age of two years he should be able to guide it well in going forward. Some attempts will be made at running and a great many attempts at climbing by the time the child has reached this age.

At three years of age a child when asked to point out different parts of its body (nose, eyes, mouth, and hair) can do so without hesitation. Familiar objects, such as a key, a penny, a pocketknife (closed), a watch, and a pencil (common wooden) will be named at once if held out to the child with the question, “What is this?”

The pictures used in the Stanford Revision of the Binet test may be shown to the child with the direction “Tell me what you see in this picture,” or “Look at the picture and tell me everything you can see in it.” In response to such questions the child should be able to enumerate different objects, such as the little girl, the window, the chair, and the woman in the pictureof the Dutch Home; or the men, the basket, and the newspaper in the picture of the Post office.

At this age the child has had enough experience to be able to repeat its last name and to know whether people call it a “girl” or a “boy.” The question should be asked in the following fashion: “What is your name?” If the answer is in terms of the given name only, then the question should be amplified as follows: “Yes, but what is your other name? Walter what?” If the surname is still not given, a fictitious one may be framed and the question asked in some such fashion as follows: “Is your name Walter Smith?” If the child is still unable to reply then it is probable that he does not know the family name or is too frightened to give it. In finding whether the child knows his sex the formula for a boy should be: “Are you a little boy or a little girl?” For a girl the question should be: “Are you a little girl or a little boy?”

At the age of three years a child should be able to repeat sentences containing six or seven syllables. Those used by Terman are: (1) “I have a little dog.” (2) “In summer the sun is hot.” (3) “The dog runs after the cat.” In leading up to these repetitions it is well to ask the child first to say single words, such as “school.” “Can you say school?” “Now say, ‘I go to school.’” Then ask the child to say “I have a little dog.”

By this time the child should be able to distinguish between circles, squares, triangles, and other geometric forms. Ten drawings of circles, squares, and triangles should be presented to the child and he should be able to find one or two others just like the one to which the examiner points.

The child should by this time be able to count pennies or buttons, at least up to four, without any error. The child should be able to handle a pencil well enough so that a square one inch each way could be copied fairly well. The child’smemory has developed to such an extent that if four numbers are repeated to him at the rate of one per second he should be able to repeat them in correct order at once. Three trials should be allowed and at least one of the three should be right. By this time, also, a sentence of twelve or thirteen syllables should be remembered correctly. The sentences used by Terman are: (1) “When the train passes you will hear the whistle blow.” (2) “We are going to have a good time in the country.” (3) “The boy’s name is John. He is a very good boy.” The method of getting the child’s attention and leading up to these longer sentences is the same as was described under Year Three.

The child’s judgment has developed by this time through experience and precept to the point where an inquiry from the examiner as to “What must you do when you are sleepy?” will bring forth a response indicating that one should go to bed and sleep. The question of “What must you do when you are cold?” should bring forth some such reply as, “Put on a coat,” “Build a fire,” or “Stand next to the radiator.” The question, “What must you do when you are hungry?” should bring forth such answers as “Buy some lunch,” “Drink some milk,” or “Eat something.”

The method of scoring is briefly indicated in the list of typical performances printed on pages115–117. The three tests at age three months are each to be given one month credit. The three tests at six months are likewise to be given one month credit for each successful performance, as are the six tests at one year. The six tests at two years, the six at three years, and the six at four years, are in each case to be given a credit of two months each. The child who did everything in the entire test correctly would then have demonstrated the mental ability of the average child of four years or older. The child who completes all of the tests at three months and one of the tests at sixmonths would then be rated as having mental ability typical of a four-months-old-child. If the child were to fail on only one of the tests at one year but to pass all those previous to one year, his mental age score would be eleven months, according to this system of assigning credits. It will frequently be found that a child does not pass all of the one-year tests before being able to do one or two of the two-year tests and so on. This should not make it more difficult to score the test, for each particular performance has its value indicated in the list which was given above.

It cannot be claimed that these tests, especially those below the three-year-old level, have been fully standardized. They are, however, very much better than the average parent or relative would be able to prepare for him or herself. The mental age score which will result from the use of these tests is not as reliable as will result from the use of the Stanford Revision of the Binet tests with older children, but its reliability is sufficient to point out cases of retardation in intelligence or of distinct brilliance of mind.

Control of Eyes.Both of the eyes should look in the same direction and the child should be able to follow with its eyes the movements of bright objects in order to obtain credit in this test.

Hearing.It will not be necessary for the child to react with a start or scream to loud noises and also to react by turning the eyes in the direction of less startling noises in order to obtain credit for hearing. Either evidence, if clear, will be sufficient to warrant giving credit.

Muscular Control.The grasping of a pencil or rattle should not be taken as sufficient evidence of muscular control. The ability of the child, however, to move his hand directly to his mouth as described above will be in itself abundant evidence that the child merits a credit in this test.

Six Months

Muscular Control.Either balancing the head or sitting with some support for as much as ten minutes should be accepted as worthy of credit.

Self-direction.The attempt to pull himself to a sitting posture should not be taken by itself as evidence of credit in this test. Only when it is accompanied by one of the other two evidences should it be credited.

Enjoyment.Any two of the evidences of pleasure or displeasure listed may be taken together as indication of credit being deserved.

Imitation of Movement.Any one of the movements described, which the child learns within a short time by imitation, should give credit in this test.

Locomotion.Either of the two methods of demonstration will be sufficient.

Understanding.At least three familiar objects should be used in this test with success before credit is allowed.

Obedience.At least two simple commands should be understood and obeyed before allowing credit.

Speech.Not less than three different syllables should be used before credit is allowed.

Calling Attention.No credit should be given at this point unless the child very evidently attempts to excite interest and attention in two or three different objects.

Speech.Any four distinct articles mentioned by the child when it desires them should be sufficient evidence to give credit here.

Pictures.At least four different objects should be recognized and pointed out before credit is allowed.

Obedience.Two simple commands of the type mentioned should be sufficient to bring credit at this point.

Imitation.Only after repeated evidences of imitation of other children should credit be given here.

Discernment.Repeated evidences should be required before credit is allowed for this test.

Self-direction.Any one of the evidences described is sufficient.

Parts of the Body.Three out of four parts mentioned should be pointed out before allowing credit.

Familiar Objects.Three out of five of the objects mentioned must be named in order to obtain credit here.

Pictures.The child should name at least three objects in one of the three pictures in order to obtain credit.

Sex and Name.Accuracy is necessary here.

Repeating Syllables.One of the three sentences should be repeated absolutely without error.

Forms.Out of ten trials, at least seven should be correct in order to obtain credit.

Counting.No error should be allowed.

Copying.Out of three attempts, at least one should be fairly regular and distinctly recognizable as a square.

Comprehension.Success must be attained in two of the three questions in order to receive credit.

Repeating Numbers.One out of three trials should be absolutely correct.

Repeating Syllables.One of the three trials should be without error or two of the three trials with not more than one slight error in each.

The matter of nourishment and physical well-being may retard a child to such an extent that his intellectual development is delayed. Great care should, therefore, be taken not to interpret a low score on this test too seriously. It should also be noted that familiarity with the test is quite certain to cause parents to put forth special effort to instruct the child along the lines required by the test. The test itself is thereby invalidated. Only when no special instruction has been given at any point covered by the test can one be satisfied that he is obtaining a fair measure of the child’s ability.

The test booklet supplied for this test is not for the use of the candidate being examined but for the examiner to use as a guide and record of the examination. One such booklet should be used for each individual examined, in order to be certain that no test is omitted or wrongly scored and in order to have a record for comparison with future tests of the same individual or of other individuals.

Mentimeter No. 2PICTORIAL ABSURDITIES

One of the most popular tests in the Army Beta series was the mutilated pictures test, in which the soldiers were to draw into each picture what had been omitted. One great difficulty with this test was the tendency of intelligent men to spend far too much time trying to draw artistically the missing parts. The present test is a modification of that test, so arranged that instead of the candidate being required to draw a missing part he is only asked to make a check mark at the point where there is something that does not fit the remainder of the picture.

The test booklet is arranged with two samples on the title page to show clearly what is to be done when the candidate opens his booklet. By having these samples painted on the wall or blackboard, it would be possible to give the test to large groups of persons at once, although the directions given below are for testing one individual only at a time. Although listed as a test for non-English-speaking persons, some oral direction should accompany the motions by which the test is to be given, and English-speaking persons may be examined by this test as readily as those who speak a foreign language.

The graduation of the pictures according to their approximate difficulty makes the score in this test a real measure of the degree of absurdity which an individual can detect. The pictures themselves were chosen from as wide a field as possible in order to avoid undue advantage to persons of one type of experience rather than another. Only intelligent persons of fairly wide general experience will be able to make a perfect score in the time allowed.

Directions for Giving the Test.

The examiner and the candidate to be examined should be comfortably seated at a table with the examination booklet between them. If it is discovered that the candidate is left-handed, the examiner should sit on the left, although under ordinary circumstances the examiner should sit on the right. The blanks on the title page of the booklet should be filled out by the examiner from any records he may have of the name and age of the candidate (if persons who read and understand English are being examined, several may be tested at once and each may be asked to fill out the blanks for himself). For persons who do not understand the English language the words which are used in the following explanations will be more suggestive than informing. The chief part of the demonstration will be the motions through which the examiner goes, and therefore great care should be taken that these be as suggestive of what is wanted as the examiner can make them. To secure uniformity of procedure the routine outline below should be carefully followed.

The booklet should be opened by the examiner and the pictures exhibited for not more than twenty seconds to the candidate, the examiner pointing from one to another of the first half dozen pictures. He should then close the book and call the attention of the candidate to the picture of the rabbit on the title page. He should point to the rabbit’s ear and then point to the inappropriate ear and shake his head. This pointing to the two ears and shaking the head when pointing to the wrong type of ear may be repeated as many as three times in order to impress on the candidate that one of the ears is inappropriate. He should then take his pencil and make a check mark above the ear which is incorrect.

Mark (✓) the thing that is wrong

The examiner should then point to the second picture on the title page and look questioningly at the candidate. He may then point to the chin of the face represented and nod his head, “yes.” He may next point to the nose and nod his head, “yes,” but when he points to the place where the eye should be he should shake his head, “no,” and pretend to look for the missing eye. When found, he should make a check a mark over the misplaced eye and smile at his achievement. If special emphasis seems necessary he may point again to the eye in its inappropriate position, and shake his head, repeating the check mark above it.

If the candidate understands but does not read English the examiner may trace with his finger while reading aloud the directions printed above the test pictures. “Mark (✓) the thing that is wrong.” Exactly three minutes (180 seconds) should be allowed from the time the examiner opens the book and furnishes the candidate with a pencil.

Mark (✓) the thing that is wrong

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