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PSY 120 Lecture Notes - Wechsler Adult Intelligence Scale, Intelligence Quotient, Psychometrics

Course Code
PSY 120
Donna Darbellay

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Psychology 110
January 12 2010
Cognitive consistency: they are inadequate, distortions
H. Overcoming Our Cognitive Biases
- A way to overcome, looking at ALL the evidence; NOT just the evidence that supports the appropriate
1. Cognitive biases are less likely under certain conditions
a. Expertise and education
b. Serious consequences
c. Understand “bias”
IV. Measuring Intelligence:
Psychometrics (measurese)
A. Disagreements exist on the nature of intelligence
- Trying to measure intelligence
1. Factor analysis is a procedure: sort or analyze certain facts and put them into different groups or
- Sorts and measures difference mental abilities
2. General [g] factorthe sum of a variation types of intelligence
- Debate: what are the general types?
- Do they come under one factor?
- Can they stand alone?
- VIQ = 140, P IQ = 130 so G IQ = 135
3. Psychometric approach standardized test
a. Achievements tests [learned]
b. Aptitude test [ability to learn]
B. The Invention of IQ tests
1. Binet’s brainstorm: developed in France, specifically for children
- measure the intellectual development for children for early intervention.
- Not genetic factor alone nurturing
- worked with slow children, to improved their IQ
a. Measured a child’s mental age (MA): the age of the abilities one is performing at
b. Compared mental age to chronological age (CA) to yield
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