NURSING DL-F Applied Nursing Research Final Exam Questions With Correct Answers 2023/2024 | Latest Verified

A researcher collected cross-sectional data to estimate the percentage of community-dwelling older people who were at risk of malnutrition. What type of study is this? Selected Answer: B. A prevalence study Answers: A. A descriptive correlational study B. A prevalence study C. A path analytic study D. An incidence study  Question 1 Which strategy can achieve constancy of conditions in implementing a treatment? Selected Answer: C. Having standardized research protocols Answers: A. Maximizing precision B. Instituting manipulation checks C. Having standardized research protocols D. Using a homogeneous sample  Question 2 Which statement is true? Selected Answer: C. Threats to validity are reasons that research-based inferences could be wrong. Answers: A. Validity threats focus on causal relationships. B. Validity is a property of a study’s research design. C. Threats to validity are reasons that research-based inferences could be wrong. D. Research inferences are either valid, or they are not.  Question 3 Which threat is the most prominent to the internal validity of quasiexperimental nonequivalent control group designs? Selected Answer: D. Selection Answers: A. Temporal ambiguity B. Maturation C. Mortality D. Selection  Question 4 Nurse researchers randomly assigned 50 participants to be in a 3-month smoking cessation intervention and 50 to be in the control group. At the end of the study, there were 40 in the intervention group and 32 in the control group. Which threat to internal validity would be especially salient in this study? Selected Answer: C. Mortality Answers: A. Maturation B. Selection C. Mortality D. Temporal ambiguity  Question 5 A researcher used a two-group quasi-experimental (nonequivalent control group) design to test the effect of a Tai Chi intervention on quality of life in nursing home residents. The elders’ age was statistically controlled. What procedure for statistical control might the researcher have used? Selected Answer: A. Analysis of covariance Answers: A. Analysis of covariance B. Power analysis C. Propensity score matching D. Manipulation checks  Question 6 Researchers hypothesized that stress was a risk factor for depression among college students. The correlation between stress and depression that they found in their cross-sectional study was consistent with the hypothesis. Which is a possible threat to the internal validity of this study? Selected Answer: A. Temporal ambiguity Answers: A. Temporal ambiguity B. Mortality C. Maturation D. Selection  Question 7 Which is a threat to the construct validity of a study testing an innovative intervention? Selected Answer: C. Novelty effects Answers: A. Testing effects B. Instrumentation effects C. Novelty effects D. History effects  Question 8 Researchers do not need to know in advance which extraneous variables need to be controlled if they use which procedure? Selected Answer: A. Randomizatio n Answers: A. Randomizatio n B. Statistical control C. Matching D. Stratifying  Question 9 In a true experimental design, what does the researcher manipulate? Selected Answer: A. The independent variable Answers: A. The independent variable B. The mediating variable C. The confounding variable D. The dependent variable  Question 10 Which can result in a threat to statistical conclusion validity? Selected Answer: B. Small sample size Answers: A. Maturation B. Small sample size C. Selection bias D. Instrumentati on  Question 1 The use of randomization for assigning participants to groups eliminates: Selected Answer: B. systematic bias. Answers: A. need for a control group. B. systematic bias. C. unnecessary manipulation. D. ethical problems.  Question 2 What is the gold standard approach to analyzing data from a clinical trial when there is attrition from the study? Selected Answer: C. Intention-to-treat analysis Answers: A. Power analysis B. Per-protocol analysis C. Intention-to-treat analysis D. Analysis of covariance  Question 3 Which statement is true? Selected Answer: B. A pretest–posttest quasi-experimental design lacks randomization. Answers: A. A signature of quasi-experiments is that they involve randomization.