If a personality test measures consistently every time it is given, we say that the test is

During his college years, Jacob often experienced episodes of intense fear accompanied by the physical sensations of a heart attack. Jacob might have experienced a(n) ________ disorder while in college

a) personality b) mood c) panic d) eating

A technician is watching a sleeping person's polysomnogram (recorded on a polysomnograph). Although the technician is not looking at the individual's eyes and the laboratory is not recording eye movements tonight,

she can tell when the sleeping person is about to enter REM sleep. What indicator could provide information used to determine when the person was entering REM sleep? a) alpha waves appeared on the EEG record b) increased levels of perspiration were visible c) breathing ceased for time periods up to 30 seconds each d) muscle tension measured by an electrode placed on the chin was low