Which of these choices best describes the definition of R-squared?
A. Slope of the regression line
B. Percent of Y predicted by X
C. The correlation coefficient
D. Percent of X predicted by Y
Ans: B. Percent of Y predicted by X
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In the context of procedures used to establish linguistic equivalence, which of the following is an accurate description of back translation?
a) It involves several bilingual informants collectively translating a research protocol into a target language. b) It involves taking a research protocol in one language, translating it into the target language, and having someone else translate it back to the original. c) It is a procedure used to establish sampling equivalence. d) It is a procedure that involves several bilingual informants debating the various forms, words, and phrases to be used while translating a research protocol to a target language.
Which of the following represents the best operational definition of hunger?
a. that empty, gnawing feeling that you get in your stomach b. not having eaten for 18 hours c. the number of stomach growls reported in a ten-minute time interval d. All of the options are equally good.