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Sienkiewicz EBP chapter 2
Research questions, hypotheses, clinical questions
12
Nursing
Undergraduate 1
04/25/2016

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Term
Research Hypothesis
Definition
A statement about the expected relationship between the variables;  also known as a scientific hypothesis.
Term
Research Question
Definition
A key preliminary step wherein the foundation for a study is developed from the research problem and results in the research hypothesis.
Term
Statistical Hypothesis
Definition
States that there is no relationship between the independent and dependent variables.  The statistical hypothesis is also known as the null hypothesis.
Term
Testability
Definition
Variables of proposed study that lend themselves to observation, measurement, and analysis.
Term
Theory
Definition
Set of interrelated concepts, definitions, and propositions that present a systematic view of phenomena for the purpose of explaining and making predictions about those phenomena.
Term
Variable
Definition
A defined concept.
Term
Clinical Question
Definition
The first step in the development of an evidence-based practice project.
Term
Dependent Variable
Definition
In experimental studies, the presumed effect of the independent or experimental variable on the outcome.
Term
Hypothesis
Definition
A predicition about the relationship between two or more variables.
Term
Independent Variable
Definition
The antecedent or the variable that has the presumed effect on the dependent variable.
Term
Null Hypothesis
Definition
When a value is obtained in an experiment that indicates that there is no difference between the treatment and the control group.
Term
Population
Definition
A well defined set that has certain specified properties.
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