School Problems and the Family physician - Part I

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Appendix - 1 :

Leiter Intelligence Scale
Digits forward and backward:
This test is in two parts. Part-I consists of eight items, the first being a three digit series and the last a ten digist series.

This subject is asked to repeat each series from after the exainer reads it. Part-II also consists of eight items, the first being a two digit series and the last a nine digit series. The subject is asked to repeat in reverse order, the digits which the examiner reads to him.
Instructions for administering Part-I: Repeating digits forward Score
1. 6-4-9
7-3-2
12
2. 5-2-8-3
4-7-2-3
16
3. 3-9-4-1-6
8-3-5-2-4
20
4. 7-5-1-8-3-6
4-8-5-3-9
24
5. 2-9-4-1-7-3-8
5-1-7-2-9-3-6
28
6. 8-3-2-5-7-4-9-1
4-7-2-8-5-9-1-6
32
7. 8-4-3-6-1-9-2-5-7
4-7-2-8-5-9-1-6
36
8. 7-4-9-1-6-3-2-8-7-5
5-7-2-8-3-6-1-9-4-7
40
Instructions for administering Part-II Repeating digits backward Score
Practice 3-5-2
8-1-5

1.
7-3
4-9
8
2.
5-7-1
3-9-2
12
3.
6-1-8-5
2-7-5-3
16
4.
9-2-1-5-3
8-3-7-2-6
20
5.
5-1-9-2-3-8
6-3-8-1-4-9
24
6.
3-7-1-4-8-2-5
2-5-9-4-1-7-3
28
7. 8-4-1-3-5-2-9-6
6-4-3-1-9-2-8-7
32
8. 3-8-2-7-5-9-1-6-4
4-1-9-3-8-2-7-5-6
36
Instructions for obtaining and recording the digit test I.Q. score:
1. Add the credits earned by the subject on Part-I and Part-II and enter the score.
2. Convert the raw score to an I.Q. score by using the table given below.
Table for converting digit series raw score to I.Q. scores:

Raw score I.Q. score Raw score I.Q. score
56 149 44 105
55 146 43 100
54 143 42 96
53 140 41 92
52 137 40 88
51 134 39 84
50 131 38 80
49 128 37 74
48 124 36 68
47 120 35 62
46 115 34 56
45 110 33 50
Intelligence grading:
I.Q. Grading:
130 and > Very superior
120-129 Superior
110-119 Bright normal
90-109 Average
80-89 Dull-normal
70-79 Border line
69 and < Mentally defective

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