Thank you sir for the explanation. I want to calculate the sample size for a cross-sectional survey of unknown prevalence. Can I take p=50% as you suggested? I don't have the prevalence data for the consumption of processed packaged food in the city I am surveying. Or can I take the prevalence data of the country if it is available? please help.
Of course, you can. Also, if unknown you can assume the prevalence to be 50% which will give you the largest sample size as in the graph shown in the video
So helpful for my research study.
whyyyy there's no comments! This video's really helpful especially for novice like me
Very informative! Thank you
I think this will help me in my research study, thank you.
Glad for that
Thank you so much!
I never thought statistics will make since to me.
Thank you sir for the explanation. I want to calculate the sample size for a cross-sectional survey of unknown prevalence. Can I take p=50% as you suggested? I don't have the prevalence data for the consumption of processed packaged food in the city I am surveying. Or can I take the prevalence data of the country if it is available? please help.
If prevalence is unknown, assume a value of 50%, as mentioned in the video (4:29)
Good info, but remove background music it is distracting
Thank you sir,
in this cross sectional study, the formula for descriptive and analytic studies uses the same formula?
Can we use prevalence of systematic reviewa and meta analysis ?
If recent prevalence is not found
Of course, you can. Also, if unknown you can assume the prevalence to be 50% which will give you the largest sample size as in the graph shown in the video
Nice video
Can i get your email id
Want to calculate sample size of my study... Need guidance
get it from pubmed