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Allied Healthcare Research: Background Information

WHAT ARE RESEARCH ARTICLES?

A research article describes an original study that the author(s) conducted themselves.

It will include a brief literature review, but the main focus of the article is to describe the theoretical approach, methods, and results of the authors' own study.

Look at the abstract or full text of the journal article and look for the following:

  • Was data collected?
  • Were there surveys, questionnaires, interviews, interventions (as in a clinical trial)?
  • Is there a population?
  • Is there an outline of the methodology used?
  • Are there findings or results?
  • Are there conclusions and a discussion of the significance?

Research articles use a standard format to clearly communicate information about an experiment. A research article usually has 7 major sections:

  • Title
  • Abstract
  • Introduction/Objective
  • Method
  • Results
  • Discussion/Conclusion

A research article has a hypothesis, a method for testing the hypothesis, a population on which the hypothesis was tested, results or findings, and a discussion or conclusion.

QUALITATIVE OR QUANTITATIVE?

Qualitative

Quantitative

Definition

Research that seeks to provide understanding of human experience, perceptions, motivations, intentions, and behaviours based on description and observation and utilizing a naturalistic interpretative approach to a subject and its contextual setting.

Research based on traditional scientific methods, which generates numerical data and usually seeks to establish causal relationships between two or more variables, using statistical methods to test the strength and significance of the relationships.

Involves:

Observations described in words

Observations measured in numbers

Start With:

A situation the researcher can observe

A testable hypothesis

Goals of study design:

Participants are comfortable with the researcher.  They are honest and forthcoming, so that the researcher can make robust observations.

Others can repeat the findings of the study

Variables are defined and correlations between them are studied

Drawbacks:

If the researcher is biased, or is expecting to find certain results, it can be difficult to make completely objective observations

Researchers may be so careful about measurement methods that they do not make connections to a greater context

Some Methods:

Open-ended interviews

Focus groups

Observation

Participant observation

Close-ended interviews

Surveys

Clinical Trials

Laboratory Experiments

From A Dictionary of Nursing

WHAT ARE REVIEW ARTICLES?

Review articles summarize the current state of research on a subject by organizing, synthesizing, and critically evaluating the relevant literature. They tell what is currently known about an area under study and place what is known in context. This allows the researcher to see how their particular study fits into a larger picture.

Review articles are NOT original research articles. Instead, they are a summary of many other original research articles. When your teacher tells you to obtain an "original research article"or to use a primary source, do not use an article that says review.

Review articles may include a bibliography that will lead you back to the primary research reported in the article.

WHAT IS A SYSTEMATIC REVIEW?

Systematic Review - A systematic review is conducted to answer specific, often narrow clinical questions. These questions are formulated according to the mnemonic PICO (Population, Intervention, Comparison, Outcomes). A systematic review involves the identification, selection, appraisal and synthesis of the best available evidence for clinical decision making. A properly conducted systematic review uses reproducible, preplanned strategies to reduce bias and instill rigor and pools of information from both published and unpublished sources. A quantitative systematic review uses staistical methods to combine results of multiple systems, and may or may not be a meta-analysis.

It is not unusual now to find more that one systematic review addressing the same or similar questions paving the way for meta-summary or meta-study, a systematic review of systematic review.

Encyclopedia of Nursing Research

 

WHAT'S A META-ANALYSIS?

Meta-Analysis - a quantitative approach that permits the synthesis and integration of results from multiple individual studies focused on a specific research question. The outcome of this quantitative approach for reviewing literature has tremendous potential for a practice-based discipline such as nursing.

Encyclopedia of Nursing Research

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