Why do researchers consider RCT the gold standard?
Isnt there limitation in RCTs? What are the limitations in the RCTs?
Can these limitations be compensated fully and partially ?
If yes then how?
Please respond with standard reference and pdf
Thank you
RCTs are considered the gold standard because randomisation aims to ensure that treatment groups are equivalent on all aspects, except for the intervention of interest. This means that any observed post-treatment differences are likely to have been due to the intervention, rather than due to some other factor. However, RCTs may still be prone to bias for several reasons which are well explained by the Cochrane Collaboration here: http://handbook.cochrane.org/chapter_8/8_assessing_risk_of_bias_in_included_studies.htm
Their risk of bias tool can also be found in the attached PDF
RCTs are considered the gold standard because randomisation aims to ensure that treatment groups are equivalent on all aspects, except for the intervention of interest. This means that any observed post-treatment differences are likely to have been due to the intervention, rather than due to some other factor. However, RCTs may still be prone to bias for several reasons which are well explained by the Cochrane Collaboration here: http://handbook.cochrane.org/chapter_8/8_assessing_risk_of_bias_in_included_studies.htm
Their risk of bias tool can also be found in the attached PDF
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