A new antibody test detects serum antibodies against virus X (sensitivity 99%, specificity 90%). When applied in a group of hospitalized patients diagnosed as having virus X infections, the test is found to have a positive predictive value of 85%. When used to screen a group of healthy blood donors for virus X infections, the test is found to have a positive predictive value of 30%. Which of the following best explains this difference between the positive predictive values?

The definition of autoimmunity is a(an):

The DSM-5 criteria for brief psychotic disorder indicate that the duration of the disturbance must be less than

One explanation for the differences between the Genain sisters in their experience of schizophrenia is

Match the following terms associated with agglutination techniques.

Psychosocial “clubs” or “clubhouses” for patients with schizophrenia have been formed as a part of some rehabilitation programs. Research indicates that participation in these clubs may help prevent relapses. However, it is difficult to interpret the improvement in these patients because

Match the autoimmune disorder with its affective organ

What is the evidence for structural damage in the brains of patients with schizophrenia?

Discuss the characteristics of attenuated psychosis syndrome and explain why it is a “proposed” disorder.

BONUS:  Work on this only after you check over the rest of the exam. A small hockey puck slides without friction over the icy hill shown in the figure and lands 6.20 m from the foot of the cliff with no air resistance. What was its speed v0 at the bottom of the hill?