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Psychophysics
Psychoanalysis
Psychometrics
Psychometry
John Watson
Alfred Binet
Sir Francis Galton
Charles Spearman
85
95
110
120
Ratio IQ is most often used to describe the intelligence of children
Deviation IQ is most often used to describe the intelligence of adults
Ratio IQ is most often used to describe the intelligence of adults
Both have an average score of 100
Identify children who were early
Identify children who needed to wait a year before starting first grade
Identify children who qualified for programs for the gifted and talented
Identify children who needed remedial educational programs
Individuals can be tested for their two primary abilities
A primary intelligence area can be matched with one at the other end of the cognitive spectrum
Both heredity and environment play a role in intelligence testing
Intelligence is not a single, general ability
Higher
Lower
Much higher
More variable
Monozygotic twins
Dizygotic twins
Fraternal twins
Maternal twins
Remained steady
Steadily decreased
Increased dramatically
Steadily increased
Death in WWII
Death from lung cancer
Heart disease
Psychiatric illness
Response times
Wisdom
Emotional intelligence
Creativity
Monozygotic twins
Dizygotic twins
Identical twins
Supernal twins
Similar
Slightly lower
Substantially lower
Slightly higher
Similar intelligence level
Dissimilar intelligence level
Nonshared environment
Shared environment
Intelligence is influenced by environment
Intelligence is influenced by genes
Average IQ score is 100
Average IQ score is 100
Very little change
A steady decline
A slight improvement
A dramatic decline
Rectangle
Inverted bell
Bell
Square
90
100
110
120
Achievement test
Spatial memory test
Intelligence test
Vocabulary test
The chi square
The test of mean differences
The analysis of determinants
Factor analysis