6 intelligence & IQ testing

Question 1

criterion for Binet’s IQ test

Answer 1

chronological age and mental age (if mental > chronological, smarter)

Question 2

criterion for Stanford-Binet’s IQ test

Answer 2

intelligence quotient: mental/chronological x 100

Question 3

criterion for Wechsler’s IQ test

Answer 3

• deviation IQ
• get average score from population and set to 100
• 15 IQ points = 1 standard deviation (so score of 85 = 1 standard deviation below the mean)

Question 4

is IQ or parental SES a better measure of educational outcome

Answer 4

IQ

Question 5

how is internal consistency measured

Answer 5

• give 1/2 of test on one day and another on next day
• compare scores on odd vs even-numbered items
  (ensuring all items measure the same trait)

Question 6

what is test retest reliability

Answer 6

consistency of scores for each time an individual is tested

Question 7

do IQ tests measure a single factor of general intelligence or a set of independent abilities that constitute intelligence

Answer 7

• the latter
• because there are differences between genders and ages

Question 8

changes to IQ in Alzheimer’s

Answer 8

greater decline in performance IQ than typical ageing

Question 9

IQ test performance in Williams syndrome. which chr?

Answer 9

• verbal > performance (no visio constructive ability but good language skills; try and make speech engaging)
• chr7 homozygous deletion

Question 10

autistic spectrum: IQ tests

Answer 10

higher performance than verbal IQ (opposite of Williams)