What measure of central tendency must you be able to first calculate in order to calculate a standard deviation?
a. Mean
b. Median
c. Mode
d. Range
Question 2
Which of the following is not a criterion of sound treatment theories?
(a) coherence and clarity
(b) a concept of positive development and emotional help
(c) applicability to individuals, families, and groups
(d) a body of interventions that are compatible with the theory