2022 Introduction to Quantitative Research Test Bank Chapter 8

1. The measures used by a nurse researcher to maintain uniformity of conditions in a quantitative research study refer to which aspect of the study? a. Accuracy b. Methods c. Control d. Validity ANS: C Feedback A Accuracy refers to all aspects of a study systematically and logically following from the research question. B Methods refers to sections of the research study that include sampling, data collection, and data analysis. C Control is the term used for measures taken by the researcher to keep the conditions of a study uniform. D Validity refers to the truthfulness or soundness of a study. DIF: Cognitive Level: Remembering (Knowledge) REF: Page 165 2. What is the overall purpose of the research design in a quantitative research study? a. To determine sample size b. To identify the problem statement c. To assist the researcher in identifying gaps in the knowledge base d. To provide the plan for answering the research question ANS: D Feedback A Sample size is determined by the chosen design or by a power analysis. B The problem statement describes the general focus of the research study. C Gaps in knowledge should be identified and synthesized in the literature review. D The purpose of the research design is to provide the plan for answering the research question(s). DIF: Cognitive Level: Understanding (Comprehension) REF: Page 165 3. In which of these ways does the nurse researcher’s literature review help select the appropriate study design? a. By enlarging the scope of the study’s hypotheses b. By objectively assessing available knowledge of the area c. By comparing current findings with previous study findings d. By ensuring faithfulness to the study’s purpose ANS: B Feedback A The literature review gives the researcher clues about the direction and nature of the hypotheses but not necessarily their scope. B Objectivity in the conceptualization of the research question is derived from a thorough review of the literature. C The literature review does give information about past studies, but the research design is obtained by considering the best approach to answer the research question. D The literature review does not ensure fidelity to study purpose; the research design serves this role. DIF: Cognitive Level: Understanding (Comprehension) REF: Page 165-166 4. When reviewing a research report, the nurse determines that all aspects of a study systematically and logically follow from the research problem. Which condition has been met? a. Accuracy b. Feasibility c. Internal validity d. External validity ANS: A Feedback A Accuracy indicates that all aspects of a study systematically and logically flow from the research question. B Feasibility refers to a study’s pragmatic concerns (e.g., availability of subjects, time required). C Internal validity refers to whether the independent variable made the change in the dependent variable. D External validity refers to the generalizability of the investigation’s findings to additional populations and other environmental conditions. DIF: Cognitive Level: Understanding (Comprehension) REF: Page 165-166 Which factor is most likel