Intelligence Flashcards
Give 2 ways in which we might define intelligence
1) Intelligent acts e.g. designing a new computer, 2) Mental processes which give rise to intelligent acts e.g. WM & speed of processing
Today intelligence is believed by the influential to have 3 components: the ability to…
1) reason logically, 2) solve novel problems & 3) learn new info
Describe the problem of circularity in defining intelligence
The tendency to define intelligence as the behaviours measured by IQ tests!
How do we calculate a person’s intelligence quotient?
(mental age/chronological age) x 100
96% of all Pp fall within __ SDs (30 points) of the mean (100) & 68% of Pp fall within __ SD (15 points) of the mean (100)
1, 2
What is the most commonly used IQ test? When was it created? What are its two components?
Wechsler’s WAIS (WISC for children) test which was constructed before the structure of abilities was investigated but is constantly being updated. Verbal & performance (non-verbal) tests
Name the 5 components of the verbal part of the WAIS. If you only have time for one, which gives you the best indicator of verbal ability?
1) information, 2) arithmetic (if 20 men took 2 years to…?), 3) comprehension, 4) similarities (what is similar about…?), 5) vocabulary. Vocabulary
Give the 3 non-verbal/performance tests used in the WAIS
1) Digit symbol (fill in the correct digit for each symbol from e.g.s = easy = tests speed), 2) Picture completion (what is missing in the picture?) & 3) Block design (create the shown pattern from blocks)
Why is the performance part of the WAIS better?
Because performance on it is less likely to be affected by social background or education
Name the 4 scales used in the current WAIS IV
verbal comprehension, working memory, perceptual reasoning & processing speed
Name 3 new WAIS IV example question types
1) visual puzzles (which 3 go together to form pattern x?), 2) figure weights (what must be added to balance the weights?), 3) cancellation (draw a line through every red square & yellow triangle)
Name the 4 areas in which Piaget (1952) believed IQ could be defined
1) biological approaches, 2) stage theories, 3) knowledge acquisition & 4) intellectual competence
Competence is defined as the highest stage of cognitive development - what is this stage & the 3 preceding stages called? Does age define competence?
1) Sensorimotor, 2) Preoperational, 3) Concrete operational & 4) Formal operational. No, the stages do (though the stages are associated with likely age ranges)
Name 2 aims of the psychometric approach to IQ
1) To establish the basic structure of abilities & 2) to understand the biological/ social/ cognitive factors which cause IDs in these abilities
What did 1) Binet & 2) Spearman do in 1904?
1) developed a test to identify learning difficulties & 2) used children’s test data to argue for g (general intelligence)
If g exists and I find that there is a correlation between performance on parts A & B + C & D of an IQ test, then I would find that…
The product of r(ab) & r(cd) would roughly equal the product of r(ac) & r(bd)
What is the tetrad difference? What does it show?
The difference between e.g. the product of r(ab) & r(cd) and the product of r(ac) & r(bd). The larger the tetrad difference, the weaker the evidence for g
A small tetrad difference indicates…
a high loading of each test component onto g
Thurstone (1941) used a particular FA which…He found __ __ factors which provided evidence for…but argued that g has no…
prevented the emergence of a g factor. 7 correlated. g. fundamental significance
Thurstone’s (1941) factors included…
spatial IQ, perceptual speed, numerical IQ, verbal reasoning, memory, word fluency & reasoning