An active, conscious attempt to put something out of mind, such as not thinking about the bad grade you made on a test last week, is referred to as __________

A sudden, unpredictable feeling of intense terror, with no immediately observable cause is a(n) ______

a. phobia c. compulsion b. panic attack d. affective disorder

The only time the Type 2 error may be committed is when the

a. degrees of freedom are infinite b. degrees of freedom are less than 30 c. degrees of freedom are calculated on the basis of sample size d. none of these