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ABLE norm tables - fault identification

Please click on the group description to see the relevant T-score and percentile tables. The original standardisation sample has been included as the first table. This is to make comparisons against existing results easier for existing ABLE users.

Group no. Group description Group size Mean SD
1 Standardisation group 1: production line staff in manufacturing 69 13.86 7.62
2 Internal applicants for production line team leader roles within a manufacturing organisation 40 13.50 8.82
3 Undergraduates studying engineering 49 23.04 8.48
4 Standardisation group 2: applicants for computer programming training 97 22.79 8.72
5 Graduate applicants for IT roles within a banking organisation 40 23.45 7.08


Fault Identification group 1

Standardisation group 1: manufacturing staff currently working on production lines (22 for a paint manufacturer and 47 for a car manufacturer; the latter were line operators who had applied for team leader positions). Half had craft qualifications.

Mean: 13.86 Age range: 20 to 59, mean of 34 years
SD: 7.62 Gender: 97% male, 3% female
Sample size: 69 Background: 12% from minority groups

T-score table
Raw T-score Raw T-score
0 27 14 51
1-2 31 15 53
3 34 16 54
4-5 37 17 55
6 40 18-19 57
7 42 20 58
8 43 21 60
9 45 22-23 63
10 46 24-30 66
11 47 31-35 69
12 49 36 73
13 50
Percentile table
Raw Percentile Raw Percentile
0 1 14 55
1-2 3 15 60
3 5 16 65
4-5 10 17 70
6 15 18-19 75
7 20 20 80
8 25 21 85
9 30 22-23 90
10 35 24-30 95
11 40 31-35 97
12 45 36 99
13 50

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Fault Identification group 2

Applicants for production line team leader roles, tested in April 1998 as part of an internal reorganisation process in a large manufacturer of grocery produce. All were existing employees, in a range of positions (eg technicians, operatives team leaders), with 18 months to 23 years' work experience.

Mean: 13.50 Age range: 20 to 60 years
SD: 8.82 Gender: 85% male, 15% female
Sample size: 40 Background: None from minority groups

T-score table
Raw T-score Raw T-score
0 34 14 51
1 36 15 52
2 37 16 53
3 38 17 54
4 39 18 55
5 40 19 56
6 41 20 57
7 43 21 59
8 44 22 60
9 45 23 61
10 46 24 62
11 47 25 63
12 48 26 64
13 49 27 66
28 67
29 68
30 69
31 70
32 71
33 72
34 74
35 75
36 76
Percentile table
Raw Percentile Raw Percentile
0 1 15 55
1 5 16 58
2 10 17 68
3 15 18 75
4 20 19-20 78
5-6 23 21 80
7-8 28 22 83
9 30 23 85
10-11 33 24-25 88
12 35 26-27 90
13 40 28 93
14 48 29-30 95
31-32 98
33-36 99

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Fault Identification group 3

Undergraduates studying engineering at an English university, mainly in their second year.

Mean: 23.04 Age range: 19 to 37, mean of 21 years
SD: 8.48 Gender: 65% male, 35% female
Sample size: 49 Background: Not recorded

T-score table
Raw T-score Raw T-score
0 22 24 51
1 23 25 52
2 24 26 54
3 26 27 55
4 27 28 56
5 28 29 57
6 30 30 58
7 31 31 59
8 32 32 61
9 33 33 62
10 34 34 63
11 36 35 64
12 37 36 65
13 38
14 39
15 40
16 42
17 43
18 44
19 45
20 46
21 48
22 49
23 50
Percentile table
Raw Percentile Raw Percentile
0-3 1 26 51
4-5 2 27 59
6-10 4 28 61
11 6 29 65
12 10 30 67
13 12 31 69
14 14 32 78
15 18 33 90
16 20 34 96
17-18 31 35 98
19 33 36 99
20 37
21 39
22-23 45
24 47
25 49

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Fault Identification group 4

Standardisation group 2: applicants for computer programming training, with very limited or no work experience.

Mean: 22.79 Age range: 16 to 21, mean 18 years
SD: 8.72 Gender: 78% male, 22% female
Sample size: 97 Background: 3% from minority groups

T-score table
Raw T-score Raw T-score
0-1 27 26 51
2-5 31 27 53
6-9 34 28 54
10-11 37 29 55
12-13 40 30 57
14 42 31 58
15 43 32 60
16-18 45 33 63
19-20 46 34 66
21-23 47 35 69
24 49 36 73
25 50
Percentile table
Raw Percentile Raw Percentile
0-1 1 26 55
2-5 3 27 60
6-9 5 28 65
10-11 10 29 70
12-13 15 30 75
14 20 31 80
15 25 32 85
16-18 30 33 90
19-20 35 34 95
21-23 40 35 97
24 45 36 99
25 50

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Fault Identification group 5

Graduate applicants for IT roles within a banking organisation.

Mean: 23.45 Age range: 20 to 34, mean of 21 years
SD: 7.08 Gender: 57% male, 43% female
Sample size: 40 Background: None from minority groups

T-score table
Raw T-score Raw T-score
0-2 20 24 51
3 21 25 53
4 23 26 54
5 24 27 55
6 25 28 57
7 27 29 58
8 28 30 60
9 30 31 63
10 31 32 66
11 32 33 69
12 34 34 73
13 35 35 66
14 37 36 68
15 38
16 39
17 41
18 42
19 44
20 45
21 47
22 48
23 49
Percentile table
Raw Percentile Raw Percentile
0-6 1 26 60
7-8 2 27 63
9-11 3 28 73
12-13 5 29-30 83
14 8 31 88
15 18 32 93
16 25 33-34 95
17 30 35-36 99
18-21 38
22-23 40
24 45
25 50

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