One objection to claims of extrasensory perception is that the explanations are not parsimonious. Another objection is that the results are not ____________________

Which of the following conditions describes a psychological disorder that can occur in women within four weeks of delivering a baby?

a) perinatal dysthymic syndrome b) bipolar II disorder c) neonatal cyclothymia d) postpartum depression

The theory stating that behaviors are motivated by an organism's attempts to reduce tension from conditions such as hunger or thirst and return the body to a state of balance is called __________ theory

a) drive-reduction b) homeostatic c) needs d) disequilibrium