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This document provides a comprehensive overview of quantitative research in nursing, focusing on its foundational principles, key concepts, and ethical considerations. It explores the positivist paradigm, deductive reasoning, and the role of theory in guiding research. The document emphasizes the importance of ethical research practices, including informed consent, confidentiality, and the role of institutional review boards (IRBs). It delves into the significance of literature reviews in framing research questions and hypotheses, highlighting the interplay between existing knowledge and the development of research studies. The document further examines the relationship between independent and dependent variables, emphasizing the need for clear operational definitions to ensure accurate measurement and minimize bias.
Typology: Summaries
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Week 1 objectives
Naturalist paradigm (Qualitative methodology/design) Positivist paradigm (Quantitative methodology/design)
Definition of quantitative research “The investigation of phenomena that lend themselves to precise measurement and quantification, often involving a rigorous and controlled design.” The positivist paradigm Reductionistic: breaks down to small parts to understand the whole Systematic approach: understanding through the body’s senses Provides empirical evidence Who is the positivist?
Confounding/ Extraneous variables: other variables that may impact independent or dependent. E,g smoking and lung cancer, smoking= the independent variable, cancer= the dependent, family history of cancer= confounding variable.
Dichotomous variables: Variables that can have only 1 of 2 possible values or choices e.g male, female Relationship: “bond or connection between two or more phenomena” Conceptual definition: Comes from theory and literature itself. The abstract or theoretical meanings applied to a concept. Operational definition: The parameters that specify the boundaries of the conceptual definition. “How you are going to do it in your study” Reliability (quantitative): The accuracy of getting the same information at different times or by different people, the consistency of the data. (establishes an inter-radar) Validity (quantitative): The study if measuring the concept (s) it is supposed to. “Am I measuring what I am supposed to be measuring” Bias: An influence that distorts the study’s findings and threatens the study’s validity. Random bias: haphazard influence on the study’s which distorts findings in an inconsistent manner. “randomly pops in, no pattern to it) Systematic bias: A consistent influence throughout the study which distorts the findings consistently throughout the research Research control: The consistent withholding of influences on the study findings other than the phenomenon or variables of interest Generalizability: A quantitative research criterion to determine the extent to which findings can be applied to the target population. “Applicable or can be utilized every time it exists” “Key aspect of quantitative is everything needs to be aligned “ The research process of the process of research
Inductive reasoning: observation at the microlevel of analysis and making predictions for the larger level Deductive reasoning: observation at the larger level of analysis and subsequent predictions at the smaller level of analysis
Where do researchers get their ideas? Click to compare your answer. Why is research important to nursing practice? Click to compare your answer. What are the six main purposes of nursing research? Click to compare your answer. What are the two major research paradigms? Click to compare your answer.
What are the two major research paradigms? Click to compare your answer.