Empirical probability is used in which of the following?
a.
lottery
b.
slot machines
c.
roulette
d.
insurance rates
ANSWER:
d
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Which of the following is the first step in implementing a changing criterion design?
a. determine the target criterion for acceptable performance b. determine the average performance of the student during baseline c. determine the number of data points required for each phase d. determine interim levels of performance
A statistical hypothesis that contains the ______ symbol may be defined as ______.
a. <; two-tailed b. >; non-directional c. ?; two-tailed d. ?; directional
When Maggie wanted to find out how children were punished at home, she conducted separate interviews of individual children and their parents. An advantage of this research design is that
A. Maggie needed to interview only a few people to get a valid research sample. B. Maggie needed to interview each set of parents and children only once. C. Maggie could assess whether parents and children gave conflicting reports. D. it revealed causal relationships.
The statement of the problem for research should
a. always be in question form. b. always be in a declarative form. c. include the source and significance of the problem. d. clearly indicate what is to be investigated.