the sample size for my main research has come 376. So 10% of that would be okay?
Pilot study
Fink (2003b) as cited in Saunders et al., (2007) state that the minimum number for a pilot study is 10.
For the main study
Sekaran (2003) wrote:
Roscoe (1975) proposes the following rules of thumb for determining sample size:
1. Sample sizes larger than 30 and less than 500 are appropriate for most research.
2. Where samples are to be broken into subsamples; (male/females, juniors/
seniors, etc.), a minimum sample size of 30 for each category is necessary.
3. In multivariate research (including multiple regression analyses), the sample size should be several times (preferably 10 times or more) as large as the number of variables in the study.
4. For simple experimental research with tight experimental controls (matched pairs, etc.), successful research is possible with samples as small as 10 to 20 in size.
Reference
Sekaran, U., 2003. Research methods for business: A skill building approach. John Wiley & Sons.
Saunders, M.N., 2007. Research methods for business students, 5/e. Pearson Education India.
It depends upon variability. You may have to add to it. Or it may be enough for the main study when you get to that. - Cheers!
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