| S/N | Universities | Population | Sample | Proportionate Sampling | 50% Salkind 1997 Sample | New Propionate Sampling |
| Federal Universities | ||||||
| 1 | University of Jos | 2704 | 0.023656321 | 64 | 0.03551602 | 96 |
| 2 | Abubakar Tafawa Balewa University | 856 | 0.023656321 | 20 | 0.03551602 | 30 |
| 3 | Ahmadu Bello University | 2225 | 0.023656321 | 53 | 0.03551602 | 79 |
| 4 | University of Ibadan | 1682 | 0.023656321 | 40 | 0.03551602 | 60 |
| 5 | University of Port Harcourt | 1238 | 0.023656321 | 29 | 0.03551602 | 44 |
| 6 | Michael Okpara University of Agriculture | 1058 | 0.023656321 | 25 | 0.03551602 | 38 |
| State Universities | ||||||
| 7 | Ibrahim Badamasi Babangida University Lapai | 369 | 0.023656321 | 9 | 0.03551602 | 13 |
| 8 | Yobe State University | 769 | 0.023656321 | 18 | 0.03551602 | 27 |
| 9 | Maitama Sule University Kano | 395 | 0.023656321 | 9 | 0.03551602 | 14 |
| 10 | Lagos State University | 667 | 0.023656321 | 16 | 0.03551602 | 24 |
| 11 | Delta State University | 645 | 0.023656321 | 15 | 0.03551602 | 23 |
| 12 | Ebonyi State University | 808 | 0.023656321 | 19 | 0.03551602 | 29 |
| Private Universities | ||||||
| 13 | Baze University, Abuja | 549 | 0.023656321 | 13 | 0.03551602 | 19 |
| 14 | American University of Nigeria | 92 | 0.023656321 | 2 | 0.03551602 | 3 |
| 15 | Al-Qalam University | 346 | 0.023656321 | 8 | 0.03551602 | 12 |
| 16 | Covenant University | 467 | 0.023656321 | 11 | 0.03551602 | 17 |
| 17 | Igbinedion University Okada | 451 | 0.023656321 | 11 | 0.03551602 | 16 |
| 18 | Madonna University Nigeria | 531 | 0.023656321 | 13 | 0.03551602 | 19 |
| Total | 15,852 |
| 375 | 563 | ||