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Sample size and systematic sampling [message #3413] Sun, 07 December 2014 07:06 Go to previous message
Valko is currently offline  Valko
Messages: 12
Registered: October 2014
Member
Greetings!

I plan to work with Kyrgyzstan DHS-2012, males datasets, in SPSS software. I would like to decrease the sample size up to 380 males.
In this regards, I have two questions:

1) Calculation of a sample size for population proportions is done in the EpiInfo, and results at n=345, with additional 10% for missing values, n=380.
Pls advise, whether in the sample size calculation I should also consider for design effect of 1.5? Design effect refers to the cumulative effect of the differences in precision estimates in a study that could be attributed to the variations in design. In this case, my sample size after multiplying to 1.5 will be 570.

2) Is systematic sampling is appropriate to get a sample size of 380? How to conduct a systematic ssampling in SPSS?

Looking forward for your advice.

thank you,

Valeriya Kogay
 
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