In order to determine the cause-and-effect relations between two variables, a researcher would
a) conduct an experiment
b) administer a questionnaire.
c) collect archival data.
d) administer an inventory.
A
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As the over-80 population increases dramatically in the next 40 years, which will probably be most affected in the United States?
a. Defense systems b. Housing c. Social service systems d. Transportation systems
Which one of the following is an objective test?
a. An application blank b. An inkblot test c. A job interview d. A multiple choice exam
Which one of the following levels of measurement involves assigning numbers to rank-order data, the distance between the numbers is judged to be equal, and there is no absolute zero point?
a. Nominal scale b. Ordinal scale c. Interval scale d. Ratio scale
In regard to depression, which of the following statistics is accurate?
A) About 15 to 20% of adolescents suffer with depression. B) By puberty, depression is five times more common among girls than boys. C) During childhood, more girls than boys are diagnosed. D) ALL of the above statistics are accurate.