If you expected unequal frequencies in categorical data, but you weren’t sure what values to use as your expected frequencies, how might you make this decision?
a. Use equal frequencies because there is no way to actually know.
b. Use your best estimate based on personal observation.
c. Search published literature for a baseline.
d. Ask a few friends for their opinions.
Ans: C
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If needs for personnel and facilities must be minimized, a(n) ____ is preferable
a. personal interview b. phone interview c. group questionnaire d. drop-off survey
An old professor tells her graduate students, "Above all, when you apply the scientific method, be sure to
a. stay close to your gut feelings.". b. avoid contradicting your commonsense knowledge.". c. acknowledge that psychic phenomena are beyond scientific explanation.". d. develop theories from objective observations.".
Which of the following explains why a meaningful stimulus can be identified even through background noise?
a. Signal detection theory b. Principle of closure c. Place theory of pitch perception d. Temporal theory of pitch perception
All of the following are characteristics of disruptive mood dysregulation disorder (DMDD) EXCEPT:
A. Three or more temper outbursts per week. B. Between outbursts the person is chronically angry or irritable. C. The outbursts can be verbal or behavioral. D. The diagnosis must be given prior to the age of 6.