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HP 5379: Research Methods in Health, Human Performance, and Recreation

Risk of bias

In our initial search in PubMed, there was an RCT study that looked like it could be helpful for our research question: Born KA, Dooley EE, Cheshire PA, McGill LE, Cosgrove JM, Ivy JL, Bartholomew JB. Chocolate Milk versus carbohydrate supplements in adolescent athletes: a field based study. J Int Soc Sports Nutr. 2019 Feb 12;16(1):6. doi: 10.1186/s12970-019-0272-0. PMID: 30755234; PMCID: PMC6373093.

In order to assess the article for risk of bias, which is essential for critically appraising the evidence, we can move through the FRISBEE criteria: 

F: Follow-up (Dropouts or those lost to follow-up create missing data that disrupt the balance in groups created by randomization—this can obscure results)

R: Randomization and concealed allocation (Randomization guarantees that each subject has the same chance of entering any group.) 

I: Intention-to-treat (ITT preserves the balance of prognostic factors in groups created by the original random allocation. It avoids overly optimistic estimates of treatment efficacy resulting from excluding non-compliers) 

S: Similar baseline characteristics (Similar baseline characteristics help to ensure that there are similar confounding variables, which helps to keep the study outcome balanced)

B: Blinding (Blinding equalized the effect of patient and therapist expectations on outcome) 

E: Equal treatment (Equal treatment helps guarantee that the groups will remain prognostically balanced by avoiding systematic differences in care that could skew the results.) 

E: Equivalence to your patient/population (How applicable is this study to the population that you are studying?) 

 

Download the PDF below to help you work through the FRISBEE criteria with our sample article. 

 

 

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