Nursing Research NCLEX Practice Quiz
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A nurse wants to study the effectiveness of meditation on people who have an anxiety disorder. Which variable would be most accurate to explore in the literature on this topic?
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Use of meditation during childbirth
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Meditation techniques found to be effective.
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Pain management for people with anxiety disorders
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None of these
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Which statement is most accurate regarding hypotheses?
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Hypotheses operationally define the dependent variables.
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Hypotheses are statements about the relationships among variables.
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Hypotheses describe the effect of the dependent variable on the independent variable.
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Hypotheses must include a definition of the treatment or intervention used.
Correct Answer
A. Hypotheses are statements about the relationships among variables.Explanation
This statement is the most accurate because hypotheses are indeed statements that propose a relationship between variables. Hypotheses are formulated based on prior knowledge and research, and they aim to explain or predict the relationship between the independent and dependent variables in a study. By testing hypotheses, researchers can gather evidence to support or reject these statements and further advance scientific knowledge.Rate this question:
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- 3.
Independent variable's characteristic:
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It is the variable that is predicted to change.
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It varies with a change in the dependent variable.
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It is manipulated by the researcher.
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None of these
Correct Answer
A. It is manipulated by the researcher.Explanation
The independent variable is the variable that the researcher manipulates or changes in an experiment. This means that the researcher has control over the independent variable and can intentionally alter its values or conditions. By manipulating the independent variable, the researcher can observe and measure the effect it has on the dependent variable, which is the variable being predicted to change. Therefore, the statement "It is manipulated by the researcher" accurately describes the characteristic of the independent variable.Rate this question:
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- 4.
What is a characteristic of a hypothesis?
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It flows from the interpretation of the data collected.
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It operationally defines the variable to be studied.
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It eliminates the need to designate a dependent variable.
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It implies a causative or associative relationship.
Correct Answer
A. It implies a causative or associative relationship.Explanation
A characteristic of a hypothesis is that it implies a causative or associative relationship. A hypothesis is a statement or assumption that suggests a possible explanation or prediction for a phenomenon or event. When formulating a hypothesis, researchers often propose a potential cause-and-effect relationship or an association between variables. This helps guide the research and allows for the testing of the hypothesis through empirical data collection and analysis.Rate this question:
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- 5.
When should a hypothesis be developed by the researcher during the research process?
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Before the development of the research question
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After the development of the research question
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After a research design is determined
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Before any statistical analysis
Correct Answer
A. After the development of the research questionExplanation
A hypothesis should be developed by the researcher after the development of the research question. This is because the research question provides the overall direction and focus for the study, and the hypothesis is a specific statement that predicts the relationship between variables or the outcome of the research. By developing the research question first, the researcher can then formulate a hypothesis that addresses the specific objectives of the study and guides the data collection and analysis process. Developing the hypothesis after the research question ensures that it is grounded in the research objectives and aligns with the overall purpose of the study.Rate this question:
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- 6.
What is a characteristic of a statistical hypothesis?
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It is a null hypothesis.
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It predicts a positive relationship among variables.
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It is a complex hypothesis.
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It describes data-analysis methods.
Correct Answer
A. It is a null hypothesis.Explanation
A characteristic of a statistical hypothesis is that it is a null hypothesis. A null hypothesis is a statement that assumes there is no significant relationship or difference between variables being tested. It is used as a starting point for statistical analysis and is usually tested against an alternative hypothesis to determine if there is enough evidence to reject the null hypothesis.Rate this question:
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- 7.
Which statement about hypotheses is most accurate?
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Hypotheses represent the main concern to be studied and are the foundations of research studies.
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Hypotheses help frame a test of the validity of a theory.
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Hypotheses help to test the nursing theory.
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A hypothesis is a problem statement.
Correct Answer
A. Hypotheses help frame a test of the validity of a theory.Explanation
Hypotheses help frame a test of the validity of a theory. This statement accurately describes the role of hypotheses in research studies. Hypotheses are formulated based on a theory and are used to test the validity of that theory through empirical investigation. They provide a framework for designing experiments or gathering data to determine if the theory holds true or not. Hypotheses are not the main concern or foundation of research studies, nor are they problem statements or specifically related to nursing theory.Rate this question:
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- 8.
Which level is characteristic of the strength of the evidence provided by the results of a quasi-experimental study?
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Level I
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Level II
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Level III
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Level IV
Correct Answer
A. Level IIIExplanation
Level III is characteristic of the strength of evidence provided by the results of a quasi-experimental study. Quasi-experimental studies are research designs that lack random assignment to treatment groups, making them less rigorous than true experimental studies. Level III evidence indicates that the study is based on nonrandomized controlled trials or well-designed observational studies. This level of evidence provides moderate strength in terms of the validity and reliability of the results, but it is still considered weaker than evidence from randomized controlled trials (Level I) or systematic reviews of randomized controlled trials (Level II). Level IV evidence refers to expert opinion or case studies, which are considered to be the weakest forms of evidence.Rate this question:
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- 9.
When will a null hypothesis be rejected?
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There is no association among variables.
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There is evidence of significance.
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The independent and dependent variables are related.
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The research hypothesis is rejected.
Correct Answer
A. The independent and dependent variables are related.Explanation
A null hypothesis is rejected when there is evidence that the independent and dependent variables are related. This means that the research has found a significant association or correlation between the variables being studied. Rejecting the null hypothesis indicates that there is a meaningful relationship between the variables, supporting the alternative hypothesis that there is indeed a connection between them.Rate this question:
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- 10.
Which research hypothesis is most testable?
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There is a relationship between meditation and anxiety disorders.
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Patients with anxiety disorders who learn meditation techniques have less anxiety than those who do not.
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Teaching one meditation technique to patients with anxiety disorders will be better than teaching multiple techniques.
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The ability to meditate causes lower anxiety in patients with an anxiety disorder than in those who do not meditate.
Correct Answer
A. The ability to meditate causes lower anxiety in patients with an anxiety disorder than in those who do not meditate.Explanation
The given answer is the most testable research hypothesis because it clearly states a cause-and-effect relationship between the ability to meditate and lower anxiety in patients with anxiety disorders. This hypothesis can be tested by conducting an experiment where one group of patients with anxiety disorders is taught meditation techniques and another group is not. The levels of anxiety can then be measured and compared between the two groups to determine if the ability to meditate indeed causes lower anxiety.Rate this question:
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Current Version
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Aug 17, 2023Quiz Edited by
ProProfs Editorial Team -
Jul 20, 2017Quiz Created by
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