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Lecture 4

NURS 1010 Lecture 4: Research in Nursing 04

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NURS 1010
Stacey Barone

Research in Nursing: evidence based practice…what is it? • Evidence-based practice in nursing is the problem solving approach to making clinical decisions, using the best evidence available (considered the “best” because it is collected from sources such as published research, national standards and guidelines, and reviews of targeted literature). Inductive vs. Deductive Knowledge Development, • Inductive – starts with observations → leads to a theory o Research beings with observations/experiment → lead to general statements and lead to paradigm/theory • Deductive – you start with a theory (that involves known facts); you move from more general to specific o Start with theory → leads to predictions à you prove that your predictions are true after experiments Hypothesis: statement of relationships between the independent and dependent variables that the research expects to find research instruments: reliability: produce the same results [data] on repeated use; validity: test what they are supposed to test quantitative vs qualitative study: • Quantitative research involves concepts of basic and applied research, it deals with numbers, experimental and correlational research. Types: Descriptive, correlational, quasi-experimental, experimental • Qualitative research is the study of phenomena that are difficult to quantify or categorize (i.e. perception of illness) o Types: ethnographic, phenomenological, and grounded theory. Involves inductive reasoning to develop generalizations or theories from observations or interviews independent variable: causes or conditions that are manipulated or identified to determine the effects on the dependent variable dependent variable: variable being studied, determined as the result of a study different components of research study: • such as title: reflects the essence of the study i.e. population, setting, type of study, and include the major variables • abstract thru study findings: presents an overview of the study in a brief, succinct summary • recommendations and implications for nursing practice, • review of the literature: cites relevant studies that have been conducted in the area of study • anonymity vs. confidentiality: o anonymity- identity is not known o confidentiality- identity is known but no personal information is released • institutional review board - independent ethics committee or ethical review board, is a committee that has been formally designated to approve, monitor, and review biomedical and behavioral research involving humans • instruments: devices used to collect and record the data (rating scales, pencil and paper tests, biological measurements) • operational definitions → independent (input/cause) or dependent (output/effect) variables • probability sampling - random sampling: everyone has an equal chance in being selected for the sample • sampling, • power analysis - probability that it correctly rejects the null hypothesis when the null hypothesis is false • basic vs. applied research: o basic = (pure/laboratory research) designed to generate and refine theory, and the findings are often not directly useful in practice. o applied: (practical research) designed to directly influence or improve clinical practice. • experimental vs. non-experimental studies, • random vs. non-random study designs, • retrospective - pose a question and look back. •
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