What is the independent variable in this research question?
Clients aged 20 to 30 years.
Antipsychotic-induced weight gain.
Educational intervention.
Diagnosis of schizophrenia.
The Correct Answer is B
Choice A rationale:
Clients aged 20 to 30 years is not the independent variable in this research question. It is likely part of the study's population or sample characteristics but not the variable being manipulated or studied.
Choice B rationale:
This is the correct answer. Antipsychotic-induced weight gain is the independent variable in this research question because it represents the factor or condition that the researcher is manipulating or studying to determine its effect on the outcome variable (pain relief when used in conjunction with oral analgesics).
Choice C rationale:
Educational intervention is not the independent variable in this research question. It is the intervention or treatment being applied to the participants and is more likely the dependent variable, as its effectiveness is being assessed.
Choice D rationale:
Diagnosis of schizophrenia is not the independent variable in this research question. It is a participant characteristic that may influence the study's results but is not the variable being manipulated or studied in this context.
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Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Interviewing clients to determine if they remembered concepts taught preoperatively does not represent the first step in identifying previous research studies. It focuses on assessing the retention of teaching rather than reviewing existing literature.
Choice B rationale:
Reading full-text articles in nursing journals about designing client teaching sessions is valuable but not the first step in identifying previous research studies. It focuses on teaching session design rather than the literature review process.
Choice C rationale:
Asking orthopedic surgeons about topics to cover preoperatively with clients is a form of expert consultation but does not represent the first step in identifying previous research studies. It involves seeking expert input rather than reviewing existing literature.
Choice D rationale:
This is the correct answer. Reviewing research abstracts on preoperative teaching with a similar client population is typically the first step in conducting a literature review. It allows the nurse to identify relevant research studies that have investigated the effectiveness of preoperative teaching in a similar context.
Correct Answer is D
Explanation
Choice D rationale:
The data distribution was skewed instead of conformed to a normal curve. Parametric statistics, such as t-tests and ANOVA, assume that the data are normally distributed. When the data distribution is skewed, it violates the assumption of normality, which can affect the validity of parametric tests. Researchers should explain this limitation when reporting the study's findings.
Choice A rationale:
Collecting ratio-level data is not a limitation; in fact, it provides more information and precision than ordinal- or interval-level data.
Choice B rationale:
Finding no statistical significance in the analysis of data is not a limitation in itself but rather a result of the analysis. It may indicate that the study did not find a significant effect, but this is not a limitation of using parametric statistics.
Choice C rationale:
Having a sample considered representative of the population of interest is not a limitation but a strength of the study, as it enhances external validity.
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