A researcher conducts a hypothesis test using a sample of n = 20 from an unknown population. What is the df value for the t statistic?
a. 19
b. 20
c. 21
d. Cannot be determined from the information given
A
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Overweight adolescents are more likely to be depressed and anxious than their normal weight peers
a. True b. False Indicate whether the statement is true or false
The gender difference in the diagnosis of histrionic personality disorder has been criticized for
a. Reflecting society's inherent bias b. Not reflecting enough of the differences between men and women c. Being psychologists' plot to undermine their female colleagues d. All of the above.
To determine whether attendance at sports events is an operant reinforcer for a particular teenager, such attendance would have to
a. be demonstrated to be universally rewarding. b. increase the probability of the recurrence of the behavior it followed. c. meet a long list of criteria that includes adaptability and reliability. d. be demonstratively associated to a basic biological need.
To determine dental maturity, researchers examine
A. number of teeth B. age of emergence of the teeth C. number of cavities D. amount of calcification in the jaw bone E. number of teeth AND age of emergence of the teeth F. number of teeth AND age of emergence of the teeth AND amount of calcification in the jaw bone