For measures of cognitive abilities, about ____ of the variance ...

[Deast7027]

For measures of cognitive abilities, about ____ of the variance in performance is attributed to genetics and about half of the remaining difference is split between shared and nonshared environment.
 
  a. 10 c. 50
  b. 25 d. 75

Question 2

Correlations of which of the following are needed to compute heritability, nonshared environmental effects, and shared environmental effects for a trait?
 
  a. identical twins raised together and fraternal twins raised together
  b. identical twins raised apart and fraternal twins raised apart
  c. identical twins raised together and two non-twin siblings raised together
  d. identical twins raised apart and two non-twin siblings raise together

[Jevvish]

Answer to Question 1

C

Answer to Question 2

A

[Deast7027]

Thanks for the timely response, appreciate it

[scottmt]

Great answer, keep it coming