-If there are graphs, do they have error bars on them? For certain types of studies, a lack of confidence intervals is a major red flag.-The sample size. Has the study been conducted on 10, or 10,000 people? (For some research purposes, a sample size of 10 is sufficient, but for most studies larger is better)

المصدر: How to read and understand a scientific paper: a guide for non-scientists

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