A nurse describes the hypothesis of a research study as, "There is a positive relationship between nurses' attitudes toward AIDS patients and the number of AIDS patients they have cared for in practice." This statement is an example of what?
a. Null hypothesis
b. Nondirectional hypothesis
c. Directional hypothesis
d. Causal hypothesis
ANS: C
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A The statement is not a null hypothesis because a null hypothesis specifies no relationship.
B The statement is a directional hypothesis, not a nondirectional hypothesis.
C Because a positive relationship is specified, the hypothesis is directional.
D Because the statement indicates a relationship between variables, the hypothesis indicates an association, rather than a cause-and-effect relationship, between variables.
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