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Exam 5: Examining Research Problems, Purposes, and Hypotheses

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Question 1

Multiple Choice

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Which is an important feature of a testable hypothesis?

A) It may differ from the variables and population identified in the research purpose.
B) Methods of sampling,measurement,and data analysis are included in the hypothesis statement.
C) Relationships among the study variables must be causative.
D) Variables in a testable hypothesis are measurable or able to be manipulated.

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Question 2

Multiple Choice

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The statement,"Do patients who receive care in a Patient-Centered Medical Home have fewer emergency department visits than those who do not?" is an example of a research

A) aim.
B) hypothesis.
C) method.
D) question.

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D

Question 3

Multiple Choice

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All of the following aspects of a research proposal are part of the research hypothesis except

The statistical (null) hypothesis in a research study states that there is

In a research proposal,a statement about expected relationships among variables is the

Which type of variable is used in a descriptive study?

During a study to measure the effects of violent video games on aggressive behavior,the researchers learned that a portion of the subjects lived in homes with one or more alcoholic parents.In this study,the presence of an alcoholic parent is a(n)

When writing a proposal for a research study,the researcher includes a problem statement that serves to

In a qualitative study,which is true about the definition of research concepts?

Which is true about a causal hypothesis?

The hypothesis "A person's mental status is not affected by a relocation to a nursing home" is

The nurse researcher states that a research purpose is to measure the effects of bar code medication administration on medication errors.This is a study purpose for which type of research?

Which is true about a statement of the research purpose?

In a research proposal,the researcher states that the proposed study will explore children's feelings about chemotherapy side effects.This statement describes the

In a study of adolescent children using a group of high school football players and junior-high school cyclists,researchers compared the length of recovery from concussion between those wearing brand X helmets and those wearing brand Y helmets.In this study "high school football players" represent which type of variable?

Which is true about an operational variable in quantitative research?

In the following research clinical question,what is the intervention? "Does taking antidepressants affect the risk of suicide for cognitively impaired adolescents?"

What type of hypothesis is the following? "Children with cystic fibrosis who use a cough assist device will experience less anxiety about their disease and have fewer inpatient hospital admissions per year."

A researcher wishes to study the effects of a low-fat diet on self-esteem,weight,and energy levels among obese women over age 40.Which is the independent variable in this study?

In a study comparing the effects of complementary therapies on pain scores and narcotic analgesic use in homeless women and women who own homes,which of the following is a demographic variable?