People will often quote different forms of research, each have common characteristics and as a result pearls and pitfalls to be aware of. In this section we run through those different forms which will act as a framework to build an understanding of critical appraisal on.
A study will look to answer a question or a hypothesis.
The following determine the type of study employed;
A question or hypothesis should be supported or based on plausible thinking and based around a patient related outcome. Research only needs to be performed when the question hasn’t been answered satisfactorily already.
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Case reports are an example of observational descriptive studies?
Randomising patients to standard intubation or intubation with bougie, followed by analysis of the complication rate is an example of a observational analytical study?
Experimental studies are prospective pieces of research?
Qualitative research is normally carried out to confirm findings from experimental research?