Table 12 Sample size for each stratum and the respective number of member retrieved
From: Investigating probabilistic sampling approaches for large-scale surveys in software engineering
Strata | Name | #Distinct Members | Recruited Sample Size | Actual Sample Size | CI for CL = 95 % |
|---|---|---|---|---|---|
E1 | Agility | 114,827 | 1,031 | 57 | 12.98 |
E2 | Project Management | 5,488 | 874 | 40 | 15.44 |
E3 | Agile Practices1 | 11,633 | 955 | 56 | 13.06 |
E4 | Agile Practices 2 | 3,864 | 820 | 35 | 16.49 |
E5 | Software Testing 1 | 56,400 | 1,021 | 26 | 19.22 |
E6 | Software Testing 2 | 5,791 | 882 | 22 | 20.86 |
E7 | Configuration Management | 17,234 | 981 | 23 | 20.88 |
E8 | SW Architecture | 7,335 | 911 | 31 | 17.57 |