If a variance for a set of scores is 25.0, then the standard deviation for those scores is _____

Feelings of extreme sadness and anxiety that interfere with the inability to carry out daily tasks are part of a condition called __________

a) postpartum blues b) postpartum anxiety c) postpartum depression d) postpartum psychosis

Brain damage due to lead or mercury poisoning that causes the person to experience delusions, hallucinations, and a loss of emotional control would be classified as a(n)

a. delusional disorder. b. biological neurosis. c. organic psychosis. d. type of schizophrenia.