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Table 1 Frequencies of normal control results for each item, and proposed standardised score on the basis of percentiles

From: The standardised copy of pentagons test

Raw score No. of observations Percentage of observations Standard score
Number of 'A' omissions
0 92 98.92 100
1 1 1.08 0
> 1 0 0.00 0
Total 93 100.00  
Number of 'A' intrusions
0 86 92.47 100
1 6 6.45 8
2 1 1.08 1
> 2 0 0.00 0
Total 93 100.00  
1. Number of left pentagon angles missing (maximum 5)
0 93 100.00 100
> 0 0 0.00 0
Total 93 100.00  
2. Number of right pentagon angles missing (maximum 5)
0 92 98.92 100
> 0 1 1.08 1
Total 93 100.00  
3. Number of angles of the overlapping shape (rhombus) missing or in excess
0 92 98.92 100
> 0 1 1.08 1
Total 93 100.00  
4. Numbers of breaks and corrections in the lines of the two pentagons
0 22 23.66 100
1 36 38.71 75
2 18 19.35 35
3 3 3.23 20
4 6 6.45 15
5 7 7.53 10
> 5 1 1.08 1
Total 93 100.00  
5. Severe distortion in the proportions in the left pentagon shape
0 73 78.49 100
> 0 20 21.51 20
Total 93 100.00  
6. Severe distortion in the proportions in the right pentagon shape
0 67 72.04 100
> 0 26 27.96 30
Total 93 100.00  
7. Severe distortion of the proportions of the rhombus shape
0 60 64.52 100
> 0 33 35.48 35
Total 93 100.00  
8. Angles with a reverse orientation
0 89 95.70 100
> 0 4 4.30 5
Total 93 100.00  
9. Asymmetry of pentagons
0 79 84.95 100
> 0 14 15.05 15
Total 93 100.00  
10. Smaller size in comparison to the template
0 72 77.42 100
> 0 21 22.58 20
Total 93 100.00  
11. Sides not straight lines
0 38 40.86 100
1 24 25.81 60
2 22 23.66 35
3 8 8.60 10
> 3 1 1.08 1
Total 93 100.00  
12. Angles whose sides are not straight lines
0 67 72.04 100
1 12 12.90 30
2 8 8.60 15
3 5 5.38 6
> 3 1 1.08 1
Total 93 100.00  
13. Rotation
No 90 96.77 100
Yes 3 3.23 3
Total 93 100.00  
14. Crossing sides
0 93 100.00 100
> 0 0 0.00 0
Total 93 100.00  
15. Close-in
0 93 100.00 100
> 0 0 0.00 0
Total 93 100.00