No

Schools

Sample A/Program (Departments)

Sample batches

T/Population

Sample

students

Sampling Technique used

1^st Yr

3^rd Yr

T

1^st Yr

3^rd Yr

purposive

1

Engineering Technology

Inf. system

59

30

89

15

15

Stratified RS

Computer science

134

77

211

15

15

Stratified RS

Math’s

58

49

107

15

15

Stratified RS

2

Mathematical science

Statistics

62

51

103

15

15

Stratified RS

Amharic

10

23

33

10

15

Census

3

Language Studies

English

21

30

51

15

15

Stratified RS

History

20

30

50

15

15

Stratified RS

4

Social Science

Geography

23

27

50

15

15

Stratified RS

Total

387

317

704

115

120

135