Two variables, unemployment and mental health emergencies, have a moderate association in a research project.
Unemployment is expressed in rates per 1,000 individuals, and ranges from 0.00 to
24.50 per neighborhood, and emergency room visits is expressed as the total number of neighborhood
residents that have contact with the mental health emergency room, and this variable ranges from 0 to
140 individuals per neighborhood. How can the association be tested?
a) Chi-square
b) Correlation
c) Descriptive
d) Inferential
As the text highlights, knowledge tends to be the result of research. For social work this may entail
program or practice evaluations, building theory, or exploring social phenomena.
What is the name
of the term that refers to the science of how knowledge is generated?
a) Endocrinology
b) Pathology
c) Methodology
d) Epistemology
Measures of variability are important for quantitative analysis because they determine the extent to which scores of a value vary or disperse from measures of central tendency.
For instance, a group of
five students may take a research methods exam and the scores may be 75, 82, 84, 88, and 93. Thus
the dispersion in scores is from 75 to 93, and the mean score is 84.4. Which statistic is not a
measure of variability?
a) Standard deviation
b) Mean
c) Range
d) Variance
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