______ is the sample standard deviation divided by the square root of the sample size.

When researchers wish to observe the same subjects on many occasions over a long period of time, they use a(n) _________ study.

a.) case b.) epidemiological c.) experimental d.) longitudinal

Which of the following is NOT one of the four tasks of grieving according to William Worden?

a. Analyze the necessary losses. b. Accept the reality of the loss. c. Work through the pain of grief. d. Adjust to the environment from which the deceased is missing.