Quality of evidence vs limitations of evidence

[Sxavi0]

What is the difference between quality of evidence and limitations of evidence in the research investigation? Thank you.

[Billuminati]

What is the difference between quality of evidence and limitations of evidence in the research investigation? Thank you.

Quality refers to your experiment’s and your data’s validity, accuracy and reliability. I’ve rarely heard these grouped under the term quality, they usually ask you to evaluate these separately.

Validity= did you control all variables, making sure that the only variable that changes from trial to trial is your independent or explanatory variable?

Accuracy= did the results follow theoretical trends, were the data points close to theoretical/standard/literature values?

Reliability= were your results close to each other/consistent/replicable under the same experimental conditions eg concordant titres, how did you check this ie repetition

When they ask about limitations, you can talk about any experimental conditions that you weren’t able to control, in which direction these errors would have biased the results and how do you think you can reduce this impact in future experiments