A researcher would like to test the claim that 9 out of 10 doctors prefer Brand X. A sample of 60 doctors is obtained and each is asked to compare Brand X with another leading brand. The data show that 48 of the doctors picked Brand X. If these data are evaluated using a chi-square test for goodness of fit, what is the expected frequency for Brand X?

Treatment of childhood disorders can be difficult because _____.

A. symptoms can change with age B. younger children have very little variability in symptoms C. many disorders are not comorbid D. children often hide their symptoms from caregivers

After many sessions of psychodynamic therapy, Dan at some point experiences reluctance to cooperate with his therapist and tends to forget to do what his therapist had suggested to him. Dan is experiencing ____________

A) resistance B) desensitization C) transference D) free association