intellectual disability

Question 1

definition of IQ

Answer 1

metal age/chronological age x100

Question 2

distribution of IQs in the population. Normal? SD? What defines disabled and what % would we expect and what is actually seen

Answer 2

normal distribution. 100 is average w/ SD of 15. Disabled is 2 SD below (70 or lower). Expect 2.1% but actually closer to 3% b/c other illnesses cause ID

Question 3

IQ of most disabled people? what category

Answer 3

mild (educable), IQ 50-70

Question 4

when do most IDs originate? due to what?

Answer 4

prenatally; Chromosomal>malformation>single gene

Question 5

fragile x is due to

Answer 5

FMR1 gene trinucleotide repeat of > 230

Question 6

explain the sherman paradox

Answer 6

ppl have premutation which is mitotically stable but meiotically unstable and expands during oogenesis in each generation until full mutation is seen

Question 7

difference b/w deterioration and degeneration

Answer 7

deterioration: single event with stability on each side. Degeneration: steady decline