IntelligenceHow The Scale Is Used
Comprehension Fourth Degree
Binet's Experiment On How Teachers Test Intelligence
Superior Intelligence (i Q 110 To 120)
Counting Four Pennies
Material For Use In Testing
How The Scale Was Derived
Alternative Test: Giving Age
Other Uses Of Intelligence Tests
Differences Between Abstract Terms
Counting Thirteen Pennies
Average Intelligence (i Q 90 To 110)
Intelligence Tests Of Superior Children
Border-line Cases (usually Between 70 And 80 I Q)
Vocabulary; Twenty Definitions 3600 Words
Repeating Six To Seven Syllables
Reading For Eight Memories
Comprehension Second Degree
Sources Of Data
Binet's Questionnaire On Teachers' Methods Of Judging Intelligence
Aroused by the skepticism so often shown toward his test method, Binet
decided to make a little study of the methods by which teachers are
accustomed to arrive at a judgment as to a child's intelligence.
Accordingly, through the cooeperation of the director of elementary
education in Paris, he secured answers from a number of teachers to the
1. _By what means do you judge the intelligence of your pupils?_
2. _How often have you been deceived in your judgments?_
About 40 replies were received. Most of the answers to the first
question were vague, one-sided, "verbal," or bookish. Only a few showed
much psychological discrimination as to what intelligence is and
what its symptoms are. There was a very general tendency to judge
intelligence by success in one or more of the school studies. Some
thought that ability to master arithmetic was a sure criterion. Others
were influenced almost entirely by the pupil's ability to read. One
teacher said that the child who can "read so expressively as to make you
feel the punctuation" is certainly intelligent, an observation which is
rather good, as far as it goes. A few judged intelligence by the pupil's
knowledge of such subjects as history and geography, which, as Binet
points out, is to confound intelligence with the ability to memorize.
"Memory," says Binet, is a "great simulator of intelligence." It is a
wise teacher who is not deceived by it. Only a small minority mentioned
resourcefulness in play, capacity to adjust to practical situations, or
any other out-of-school criteria.
Some suggested asking the pupil such questions as the following:--
"Why do you love your parents?" "If it takes three persons seven
hours to do a piece of work, would it take seven persons any
longer?" "Which would you rather have, a fourth of a pie, or a
half of a half?" "Which is heavier, a pound of feathers or a
pound of lead?" "If you had twenty cents what would you do with
A great many based their judgment mainly on the general appearance of
the face and eyes. An "active" or "passive" expression of the eyes was
looked upon as especially significant. One teacher thought that a mere
"glance of the eye" was sufficient to display the grade of intelligence.
If the eyes are penetrating, reflective, or show curiosity, the child
must be intelligent; if they are heavy and expressionless, he must be
dull. The mobility of countenance came in for frequent mention, also the
shape of the head.
No one will deny that intelligence displays itself to a greater or
less extent in the features; but how, asks Binet, are we going to
_standardize_ a "glance of the eye" or an "expression of curiosity" so
that it will serve as an exact measure of intelligence?
The fact is, the more one sees of feeble-minded children, the less
reliance one comes to place upon facial expression as a sign of
intelligence. Some children who are only slightly backward have the
general appearance of low-grade imbeciles. On the other hand, not a few
who are distinctly feeble-minded are pretty and attractive. With many
such children a ready smile takes the place of comprehension. If the
smile is rather sweet and sympathetic, as is often the case, the
observer is almost sure to be deceived.
As regards the shape of the head, peculiar conformation of the ears, and
other "stigmata," science long ago demonstrated that these are
ordinarily of little or no significance.
In reply to the second question, some teachers stated that they never
made a mistake, while others admitted failure in one case out of three.
Still others said, "Once in ten years," "once in twenty years," "once in
a thousand times," etc.
As Binet remarks, the answers to this question are not very enlightening.
In the first place, the teacher as a rule loses sight of the pupil when
he has passed from her care, and seldom has opportunity of finding out
whether his later success belies her judgment or confirms it. Errors go
undiscovered for the simple reason that there is no opportunity to check
them up. In the second place, her estimate is so rough that an error
must be very great in order to have any meaning. If I say that a man is
six feet and two inches tall, it is easy enough to apply a measuring
stick and prove the correctness or incorrectness of my assertion. But if
I say simply that the man is "rather tall," or "very tall," the error
must be very extreme before we can expose it, particularly since the
estimate can itself be checked up only by observation and not by
The teachers' answers seem to justify three conclusions:--
1. Teachers do not have a very definite idea of what constitutes
intelligence. They tend to confuse it variously with capacity for
memorizing, facility in reading, ability to master arithmetic, etc. On
the whole, their standard is too academic. They fail to appreciate the
one-sidedness of the school's demands upon intelligence.
In a quaintly humorous passage discussing this tendency, Binet
characterizes the child in a class as _denature_, a French word which we
may translate (though rather too literally) as "denatured." Too often
this "denatured" child of the classroom is the only child the teacher
2. In judging intelligence teachers are too easily deceived by a
sprightly attitude, a sympathetic expression, a glance of the eye, or a
chance "bump" on the head.
3. Although a few teachers seem to realize the many possibilities of
error, the majority show rather undue confidence in the accuracy of
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