Changes in awareness produced by meditation, hypnosis, and drugs are generally referred to as__________

Judith is startled when her 6-year-old daughter, Laura, sleepwalks into the family room. It is most likely that Laura is experiencing the __________ stage of the sleep cycle

a) REM b) first c) third d) fourth

Perhaps the greatest disadvantage or limitation associated with correlational research is:

a. The inability to look at important variables such as maturational effects on behavior b. Its insensitivity to ethical concerns c. The inability to control events and isolate cause and effect relations d. The fact these methods usually focus attention too narrowly on a single variable