Origins & Modern
Intelligence Tests
Section E
Kathy Lew, Eric Lee,
Andy An, Taehun Choi
Origin
We need a way
to assess
which children
need
assistance!
Alfred Binet
Through the questions,
Binet and Simon was
able to analyze that
some children were able
to answer harder
questions that are
usually solved by older
children
…And the other way around, too.
Binet-Simon Scale
Binet and Theodore Simon created an
intelligence test.
Series of questions required:
- Attention
- Memory
- Problem-solving skills
Binet-Simon Scale
• Still a basis for the intelligence testes used
today
However,
Binet thought there are
limitations on this test
The problem is:
Intelligence is
too broad to be identified with
a single number!
•It is influenced by factors such as
– Changes over time
Stanford-Binet Intelligence Test
• Binet-Simon scale was
introduced to United States
Lewis Terman took the
original test and
standardized in U.S.,
introducing it to the
public in 1916.
Stanford-Binet Intelligence Test
• The test used intelligence quotient (or IQ)
– (Mental Age/Chronological Age) X 100
– Ex) A child with MA of 15 and a CA of 11 would
have an IQ of 136 (15/10 X 100)
Sample IQ test 1
• Answer : F
Sample IQ test 2
Answer : A
Sample IQ test 3
• Answer : B
Sample IQ Test 4
Sample IQ Test 4 Answer
Red, Diamond
Modern Tests of Mental Abilities
Aptitude Tests
Achievement Test
•A test designed to predict a
person’s future performance
•Capacity to learn
•A test designed to assess
what a person has learned
Ex) AP Psychology
Wechsler Intelligence Scales
• Developed by David Wechsler
• Developed 2 ways for children
• Wechsler Intelligence Scale for
Children (WISC)
• Wechsler Preschool and Primary
Scale of Intelligence (WPPSI)
• And a version for adults
• Wechsler Adult Intelligence Scale
Fourth Edition (WAIS-IV)
WAIS
• Measures one’s overall intelligence and 11
other aspects related
– Analyze one’s educational problem.
– 4 major aspects:
– Verbal Comprehension Index
– Perceptual Reasoning Index
– Working Memory Index
– Processing Speed Index
Wechsler Intelligence Scales
• Scored by comparing one’s score to that
of others in the same age group
VS
Modern WAIS test (2008 Edition) have 15 subtests
Constructive Intelligence Test
Should be ….
• Reliable
• Valid
• Standardized
Standardization
• Uniform testing procedures
• Meaningful scores by Comparison with
performance of a pretested group.
Consistency and objectivity of how tests are
administered and scored.
Normal Curve
= Symmetrical bell-shaped curve that describes
the distribution of many physical and psychological
attributes
Flynn Effect
Reliability
The consistency of a test or a measure
Ex) If a subject were to take an intelligence test, then the consequent results
should all be the same or at least approximately the same.
Validity
• Content Validity
→ How well a test samples the behavior that
is of interest.
Ex) If Mr.Mussleman were to give a quiz on
intelligence test and if the quiz does in fact
measures one’s knowledge of intelligence
test, then the quiz can be said to have
content validity
Validity
• Predictive Validity
→ The success with which a test predicts
the behavior it is designed to predict.
Ex) College Entrance Test (SAT, ACT)
Important Terms Covered
Additional Video
• If we have time….
https://www.youtube.com/watch?v=UEJAjB8pbcg
Source
•
•
•
•
•
•
Myers 617- 623
Pearson AP Psychology 280-284
Psychology: Theme and Variations 355-362
Barron’s AP Psychology 231-232
The Science of Psychology 3 268-271
Cherry, Kendra. "IQ (Intelligence Quotient)
Testing: Brief History." About.com. N.p., n.d.
Web. 28 Jan. 2015.