How is the global test score supposed to be computed based on the individual scores in the Wechsler Nonverbal Scale of Ability?

Let's say the sub-test scores are A, B, C, and D.

From there:

  • how do we obtain the global score? is it age dependent?
  • I understand that the standard deviation on the total score is 15. Is this correct?
  • how is the confidence interval computed? is it symmetric around the "measured" value?

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.