Laboratory research indicates that feelings of lack of __________ contribute to the onset of panic attacks among patients with panic disorder

A politician who wants to deliver a more persuasive speech could attempt to do which of the following?

a. get members of the audience to nod their heads in an up and down motion b. get members of the audience to shake their heads in a back and forth motion. c. deliver a weak message but dress attractively. d. deliver a very short message

When is there a risk of a Type I error?

a. Whenever H0 is rejected b. Whenever H1 is rejected c. Whenever the decision is "fail to reject H0" d. The risk of a Type I error is independent of the decision from a hypothesis test.