Class Notes (1,000,000)
CA (620,000)
UTSC (30,000)
Psychology (8,000)
PSYA02H3 (1,000)
Lecture 1

PSYA02H3 Lecture Notes - Lecture 1: David Wechsler, Lewis Terman, Normal Distribution


Department
Psychology
Course Code
PSYA02H3
Professor
Steve Joordens
Lecture
1

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Lecture 2: Understanding Intelligence
Studying individual dierences
Most research aims to understand the “average” human –
nomothetic research
Why and how some humans dier from others – focus on
individual dierences
Intelligence
What is intelligence?
How does one measure intelligence?
Ability to measure intelligence might be bene%cial in a
number of ways – also controversial
oBene%t: allows you to assess whether certain
educational approaches lead to higher level of success
oControversy: sterilization based on IQ score
Assessing Intelligence
Psychologist’s de%ne intelligence testing as a method for
assessing an individual’s mental aptitudes and comparing
them with others using numerical scores
Normal Curve
Standardized tests establish a normal distribution of scores on
a tested population in a bell-shaped pattern called the normal
curve
Alfred Binet
Alongside Theodore Simon practices modern form of
intelligence testing by developing questions that would
predict children’s future progress in the Paris school system
Lewis Terman
Adapted Binet’s tests for American school children and named
the test the Stanford-Binet Test. Formula of intelligence
Quotient (IQ), introduced by William Stern:
oIQ=mental age/chronological age x100
David Wechsler
Wechsler Adult Intelligence Scale (WAIS) and the Wechsler
Intelligence Scale for Children (WISC) – intelligence test for
school aged children
Measures overall intelligence and 11 other aspects related to
intelligence that are designed to assess clinical and
educational problems
Principles of Test Construction
For s psychological test to be acceptable it must ful%ll the
following 3 criteria:
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