Intelligence

Question 1

Fraternal twins

Answer 1

• develop from 2 different eggs that are fertilized by 2 different sperm
• share 50% of genes

Question 2

Identical twins

Answer 2

• 1 egg splits and is fertilized by single sperm

- share 100% of genes

Question 3

Heritability coefficient

Answer 3

• how much of a trait is inherited on average

- depends on environment (rich kids higher h2 than poor kids)

Question 4

Shared vs non shared environments

Answer 4

• shared: factors shared by all members of house
• non: not experienced by all
• not everyone in the same house has same intelligence because they can have some non shared thiNgs (ie friends, teachers, illnesses)

Question 5

Cognitive enhancers

Answer 5

• produce improvements in the psychological responses in intelligent behavior
• ie Ritalin and adderall
• enhance cognitive performance