The measures used by a nurse researcher to maintain uniformity of conditions in a quantitative research study refer to? Show
In what way does the researcher's literature review help select the appropriate study design? By objectively assessing available knowledge of the area Which factor is MOST likely to be an extraneous variable in a study to determine if high doses of vitamin C helps reduce the subjects' susceptibility to influenza? The subjects' use of influenza vaccine Why should a nurse researcher want to limit or eliminate extraneous variables in a study? Extraneous variables compete with the independent variables as explanations of the study;s outcome A nurse researcher assigns subjects to experimental and control groups in such a manner that each subject in a population has an equal chance of being selected. What is the researcher using? Randomization(distribution of sample on purely random basis) What is choosing a population that isn't a representative sample? The nurse researcher designed a study examining anxiety among elementary school children. If a widely publicized murder of a child occurred in the city during the time frame of the study, what type of threat to internal validity would the murder represent? What type of threat to internal validity involves using different/changes in measurement tools? A nurse researcher should consider mortality a threat to the study's internal validity for which of these reasons? Those who dropped out of the study may be different than those who remained in the study (mortality = loss of participants, not death) External validity refers to which of these issues? The degree to which findings are generalizable to populations beyond those studied
The nurse is critiquing a research study that used an experimental design. How can the nurse determine if the study's results are able to infer causality? The relationship between independent and dependent variables must not be explainable by any other variable The experimental treatment initiated by a researcher can be described as what kind of variable? Compared with a quasi-experimental design, which of these characteristics should a nurse expect to see ONLY in a true experimental design? In a true experimental study, the control group is the group that does what? Receives the placebo treatment What type of threat to validity is minimized by the use of a Solomon four-group design? What is a Solomon four-group design? An after-only nonequivalent control group design would be appropriate to study which of these research questions? What is the effect of preoperative teaching on vascular complications after orthopedic surgery? A quasi-experimental research design would be preferable to an experimental design in which of these situations? Data will need to be collected in a real-world setting Experimental design or randomized clinical trials provide the strongest level evidence for a single study. What is the level? Which method of data collection is MOST appropriate for a nurse researcher to use in a survey study? Why would a nurse researcher choose to use research studies that examine the associations or relationships between variables? There is application in clinical settings and a foundation for future experimental studies Which type of study should be used when data are collected at only one point in time? Cross-sectional (data collected on only one occasion with same subjects) What is retrospective? (data collection method) Dependent variable already effected, used as attempt to link present events to ones in the past How does an experimental research design differ from a nonexperimental research design? Nonexperimental = attempt to test differences among variables What term means a summation and assessment of research studies found in the literature based on a clearly focused question? What term means a systematic summary using statistical techniques? What is the international organization that prepares and maintains? What term is the broadest review, critical review of an area of research without statistical analysis or theory synthesis? The highest level of evidence is known to be what? EBP methods such as meta-analysis allow nurses to develop the best evidence-based practices. T or F? A forest plot geographically depicts results of analyzing a number of studies. T or F? An integrative review critically appraises an area using statistical analysis. T or F? What is the process of selecting representative units of a population for a research study? How should a nurse researcher expect a sample to differ from a population? A sample is a representative segment of a defined population Which statement is most accurate regarding inclusion and exclusion criteria? These criteria serve to ensure that the characteristics of the sample and population are congruent The nurse researcher knows that a sample is representative of a population when which statement is true? The characteristics of the sample closely approximate those of the population How can a nurse researcher tell the difference between accessible population and target population? Target = represents the entire set of cases the researcher wises to study Which type of sampling is most at risk for sample bias? A researcher consumer should evaluate sample size in a research report by doing what? By asking how representative the sample is relative to the target population Which statement regarding sample size is most accurate? Studies with larger sample sizes have more accurate results What should the nurse researcher expect to be the difference between data collection for patient care and data collection for the purpose of research? data collection for research purposes must be objective and systematic Which data collection method would be most appropriate in studying bullying behavior in elementary school-aged girls? Concealment of the researcher without intervention in children's behavior What is the nurse researcher's primary concern in stat collection for research? Consistency in data collection A nurse researcher would choose physiologic data collection methods for which reason? Data collection of patient body weights Which observational role would be most appropriate if the nurse researcher wants to identify maternal response behaviors to cries of infants with colic? Concealment with intervention A researcher is designing a study examining anxiety. The researcher could operationalize anxiety through what? -Vital sign readouts -Observation -Sweat-level measurements -Interview -Paper and pencil scale What are the four purposes of QUALITATIVE research? - To describe, understand or explain phenomena What are the three parts to EBP? 1. Patient values/preferences Evidenced based practice is integrating what the best research evidence says with clinical expertise to determine what clinical decision to make based on the patient’s values and preferences. QUALITATIVE research is found at what levels of evidence? How can the nurse researcher most accurately determine sample size?A major factor determining sample size is the type of design used. A nurse researcher can most accurately use the technique of power analysis: to estimate sample size.
How would a nurse researcher ensure that the sample used in a quantitative study is homogeneous?How would a nurse researcher ensure that the sample used in quantitative study is homogeneous? Use eligibility criteria to limit extraneous variables relevant to the study. How can a nurse researchers use of a homogeneous sample weaken a research study? By decreasing the generalizability of the findings.
What is the purpose of a correlational study of multiple variables?Correlational studies allow researchers to detect the presence and strength of a relationship between variables, while experimental studies allow researchers to look for cause and effect relationships.
Which research topic would most likely be studied through a qualitative research approach?D Human experience occurring in a person's natural setting is the focus of qualitative studies, although investigators may not always go to the setting where the person experienced the phenomenon.
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Which method of data collection is most appropriate for a nurse researcher to use in a survey study?
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