Practice of Nursing Research Appraisal Synthesis 7th Edition By Grove Burns
Practice of Nursing Research Appraisal Synthesis 7th Edition By Grove Burns
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Chapter 8: Objectives, Questions, Hypotheses and Study Variables
Complete Chapter Questions With Answers
Sample Questions Are Posted Below
MULTIPLE CHOICE
| a. | To answer the research question |
| b. | To determine the strength of the statistical relationship among the variables |
| c. | To determine whether homeless children seem to have longer length of hospital stay, poorer verbal skills, and more fear of separation from their parents than do other children |
| d. | To measure length of stay, verbal skills, and fear of separation from parents in homeless children admitted to the hospital |
ANS: C
Research objectives are clear, concise, declarative statements that are expressed in the present tense. For clarity, an objective usually focuses on one or two variables (or concepts) and indicates whether the variables are to be identified or described. Objectives can also identify relationships or associations among variables, determine differences between groups or compare groups on selected variables, and predict a dependent variable based on selected independent variables.
DIF: Cognitive Level: Application REF: Page 138
| a. | Length of hospital stay, verbal skills, and fear of separation from parents have no relationship to children’s homelessness. |
| b. | Does children’s homelessness affect length of hospital stay, verbal skills, and fear of separation from parents? |
| c. | Was homelessness related to length of hospital stay, verbal skills, and fear of separation from parents in this study? |
| d. | Is homelessness in children related to length of hospital stay, verbal skills, and fear of separation from parents? |
ANS: D
A research question is a concise, interrogative statement that is worded in the present tense and includes one or more variables (or concepts). The research questions focus on (1) the description of the variable(s), (2) a determination of differences between two or more groups regarding selected variables, (3) an examination of relationships among variables (relational), and (4) the use of independent variables to predict a dependent variable. In this case (3), the examination of relationships among variables, would be the focus of the research question, since cause is not a focus of study.
DIF: Cognitive Level: Application REF: Page 140
| a. | Longer length of hospital stay, worse verbal skills, and fear of separation from parents are caused by children’s homelessness. |
| b. | Homelessness in children is related to length of hospital stay, verbal skills, and fear of separation from parents. |
| c. | There is no relationship between children’s homelessness and length of hospital stay, verbal skills, and fear of separation from parents. |
| d. | If a child is homeless, that child is likely to have poor verbal skills, more difficulty separating from parents, and a longer hospital stay. |
ANS: B
A hypothesis is a formal statement of the expected relationship or relationships between two or more variables in a specified population. The hypothesis translates the problem and purpose into a clear explanation or prediction of the expected results or outcomes of the study. A hypothesis (1) specifies the variables the researcher will manipulate or measure, (2) identifies the population the researcher will examine, (3) indicates the type of research, and (4) directs the conduct of the study. Hypotheses are described using the terms in the following four categories: (1) associative versus causal, (2) simple versus complex, (3) directional versus nondirectional, and (4) null versus research.
DIF: Cognitive Level: Application REF: Page 142
| a. | All the variables in the hypothesis are measurable. |
| b. | The hypothesis must be replaced by a research question. |
| c. | The value of the hypothesis is low. |
| d. | The hypothesis is causational. |
ANS: A
Hypotheses identify different types of relationships and numbers of variables. A well-formulated hypothesis clearly identifies the relationship between the variables. A hypothesis’s value is ultimately derived from whether it can be tested in the real world. A testable hypothesis is one that contains variables that can be measured or manipulated in the world.
DIF: Cognitive Level: Synthesis REF: Page 144
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