Which approache do you prefer to determine the sample size?
1- Determining the sample size based on the community: Cochran's formula, Krejcie and Morgan table and tally (Finger head)
2- Sample size based on statistical test by Software which helps in convenient calculation, Statistical Power, Sample Sizes, ...
for example sample power
Definitely, I meant that, but I could not convey the meaning properly.
wish health to you in these days. 🌹🌹
Both approaches are fine but you are talking about estimation of a population proportion with a simple random sample. Only one of many possibilities. Here are my 2 fav. references. I'm sure someone will comment on software such as G*power. Best, David Booth
https://b-ok.cc/book/2324520/acf6e2
and
https://b-ok.cc/book/833663/2089a4?dsource=recommend
By the way with a little thought these methods generalize to linear statistical models.
certainly yes, I agree. researchers need to consider variety factors for determining sample size. but unfortunately some times, researchers not only do not note to effective factors, but also they choose the number 384 that question someone research validity. I intended remind this subject.
Your attention is very valuable.
I'm sorry but there are no magic numbers in sample sizes. If there were I couldn't have sent those references. They are the only methods that can tell you if your sample size is large enough to meet your goals. The computer programs are based those references. Best wishes, D. Booth
Definitely, I meant that, but I could not convey the meaning properly.
wish health to you in these days. 🌹🌹
- Badges
- Science topic
- Similar topics
- Mathematics
- Statistics
- Sampling Design
- Sample Size