08 Validity of epidemiological studies 

1:48 Accurate = Precision + Validity. I never heard that before. Please correct it.

Excellent presentation & flow of relevant points.

Excellent explanation

Biases- selection bias, information bias( recall bias), confounding Confounder- affects exposure and outcome Effect modifier - don't affect both

Thank you so much, sir.

Excellent explaination

You explain very nicely.But can we have English subtitles also

Literally there's no use of reading the slides without explaining/ giving examples.

Sir has anyone told you ,You look ,talk and feel like M.S.Dhoni.When you are lecturing I am reminded of MSD

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not understanding

Introduction 0:00 Selection Bias 4:41 Information Bias 10:24 Confounding 15:28 Conclusion 19:55

Nice lecture

Should explain the concept rather than just reading the slides Waste of time