CRITICAL REVIEW OF RESEARCH

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CRITICAL REVIEW OF RESEARCH

• Dr.K.N.PAI
• Director,
• IHMA School of Homoeopathy

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RESEARCH

• Systematic process of collecting and analysing
  information to increase our understanding of
  phenomenon under study.

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REVIEW

• A critical examination of the research work.
• Estimate the worth of the study.

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WHAT IS APPRAISAL?

• It is a technique which
• Increases the effectiveness of your reading
• Enables you to exclude research studies that are
  too poorly designed to inform practice.
• This frees your time to concentrate on a more
  systematic evaluation of those studies that cross
  the quality threshold
• This allows you to extract their salient features.

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Acquire skills in Critical Appraisal
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FACTORS DECIDING WORTHINESS

• Relevance
• Extrinsic factors
• Intrinsic factors
• Validity
• Reliability
• Applicability

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RELEVANCE

• Topic of the study
• How important it is to you at the moment
• The level at which it is done
• The professional group discipline for whom it is
  done.

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Extrinsic factors

• Those external factors which are assumed (but are
  not necessarily) to be associated with the
  quality of the work
• Who done it where the work carried out
• What their job or qualifications are
• Whether any pilot work was carried out
• Which journal it was written in
• Who paid for the study.

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INTRINSIC FACTORS

• Those factors that relate to the study itself
• The appropriateness of the study design to the
  question being asked
• The suitability of the sample
• The methods used to recruit the sample
• The methods used to obtain the results

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VALIDITY

• Are the conclusions justified by the description
  of the methodology and the findings?
• Is the methodology sound ?
• Are there confounding factors the researcher has
  failed to consider?
• Whether appropriate and unbiased sample size was
  selected?
• Whether the study followed all ethical
  guidelines?

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RELIABILITY

• What are the findings of the study?
• Is the effect demonstrated large enough to be of
  significant?How confident are we that result fall
  within the bounds of reasonable expectation and
  not a mere fluke?

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APPLICABILITY

• Can the study be generalized to workplace?
• How the study contribute to socio-economic,
  biomedical or policy questions?

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CHECK LIST FOR CRITICAL REVIEW
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• TITLE AND ABSTRACT-1
• INTRODUCTION -2
• Background -3

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METHODS

• Participants-3
• Interventions -4
• Objectives -5
• Outcomes -6
• Sample size -7
• Randomisationsequence generation -8
• Allocation concealmnet -9
• Implimentation -10
• Blinding (masking) 11
• Statistical methods -12

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RESULTS

• Participant flow-13
• Recruitment -14
• Baseline data -15
• Numbers analysed -16
• Outcomes and estimation -17
• Ancillary analyses -18
• Adverse events -19

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DISCUSSION

• Interpretation -20
• Generalizability -21
• Overall evidence -22

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THANKYOU