Assume that, for a given item, U = L = 10 and 80 of the examinees ...

[storky111]

Assume that, for a given item, U = L = 10 and 80 of the examinees in the upper group but only
  30 of those in the lower group get the item right. Then
 
  A) p = .45, D = .60. B) p = 1.10, D = .25.
  C) p = .55, D = -.50. D) p = .55, D = .50.

Question 2

The Wechsler Intelligence Scale for Adults-III Index scores that are most sensitive to cognitive
  decline are Processing Speed and Working Memory.
 
  Indicate whether the statement is true or false

[Li Jun]

Answer to Question 1

D

Answer to Question 2

TRUE

[storky111]

Thanks for the timely response, appreciate it

[nanny]

Great answer, keep it coming