If the scores on a test are normally distributed, what percentage will be within two standard deviations of the mean?

For an independent-groups t test, the value of Cohen's d describes:

a. the size of the treatment effect. b. the chance of a Type I error. c. the chance of a Type II error. d. the overall chance level in the experiment.

What is the major goal in treating dissociative identity disorder (DID)?

a. fusing and completely integrating the individual personalities b. integrating all personalities such that they work together c. giving the client permission to see the personalities as different aspects his/her personality d. having the client incorporate each personality appropriately into daily life