Numerical Test XXI Information

Numerical Test XXI contains 35 items and measures numerical intelligence. The maximum time that is allowed to complete the test is 35 minutes. There is only one correct answer per question and 8 answer choices per question.

The Numerical Test XXI assesses intelligence with scores ranging up to an IQ of 139. The norming data is provided in the table below.

Normative Data

Pearson's R: + 0.818

Raw Estimated IQ, sd.15
1105
2106
3107
4108
5109
6110
7111
8112
9113
10114
11115
12116
13117
14118
15119
16120
17121
18122
19123
20124
21125
22126
23127
24128
25129
26130
27131
28132
29133
30134
31135
32136
33137
34138
35139