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International Journal of Interdisciplinary Research

Table 7 Comparison of scores in evaluation system for the current and proposed jackets (N = 15)

From: Development of a quantitative system for subjective evaluation of tracked vehicle crew jackets

Factor

 

Subfactor

Current tracked vehicle jacket

Proposed tracked vehicle jacket

t-value

Points

Score

Standardized score

Points

Score

Standardized score

Dimensional suitability

1

Bottom circum. fit

2.8

55.1

20.5

4.5

85.4

31.8

− 9.5***

2

Sleeve length fit

2.7

4.6

3

Cuff circum. fit

2.8

4.5

4

Collar circum. fit

2.6

4.2

5

Posterior shoulder length fit

3.0

4.5

6

Total length fit

3.1

4.5

7

Chest circum. fit

2.3

3.1

Subtotal

19.3

29.9

Mission suitability

1

Sufficient storage

3.1

62.0

14.8

4.8

89.6

21.4

− 8.4***

2

Ease of storage

2.7

4.7

3

Lightness

3.3

4.3

4

Mission environment suitability

3.3

4.4

5

Ease of dressing and undressing

3.1

4.2

Subtotal

15.5

22.4

Motion suitability

1

Torso joint usability

3.0

57.5

12.3

4.4

86.0

18.4

− 7.0***

2

Shoulder joint usability

2.9

4.3

3

Elbow joint usability

2.9

4.3

4

Neck joint usability

2.7

4.2

Subtotal

11.5

17.2

Aesthetics

1

Color

2.9

60.0

10.5

4.7

89.8

15.7

− 8.9***

2

Sense of belonging

3.2

4.2

3

Fancy design

2.9

4.6

Subtotal

9.0

13.5

 

Total

234.6

58.1

350.8

87.3

− 10.7***

  1. Total evaluation score for the current tracked vehicle jacket = 55.1 × 0.3719 + 62.0 × 0.2389 + 57.5 × 0.2138 + 60.0 × 0.1752 = 58.1
  2. Total evaluation score for the newly developed tracked vehicle jacket = 85.4 × 0.3719 + 89.6 × 0.2389 + 86.0 × 0.2138 + 89.8 × 0.1752 = 87.3
  3. circum.: circumference
  4. ***p < 0.001