T.E.S.S.E.R.A. Information
The Timed Evaluation of Spatial Skill, Efficiency & Reasoning Ability contains 20 items and measures spatial intelligence. The maximum time that is allowed to complete the test is 15 minutes. There is only one correct answer per question and 6 answer choices per question.
The Timed Evaluation of Spatial Skill, Efficiency & Reasoning Ability assesses intelligence with scores ranging up to an IQ of 149. The norming data is provided in the table below.
The Timed Evaluation of Spatial Skill, Efficiency & Reasoning Ability developed by Randy Myers.
Normative Data
Pearson's R: + 1
| Raw | Estimated IQ, sd.15 |
|---|---|
| 1 | 92 |
| 2 | 95 |
| 3 | 98 |
| 4 | 101 |
| 5 | 104 |
| 6 | 107 |
| 7 | 110 |
| 8 | 113 |
| 9 | 116 |
| 10 | 119 |
| 11 | 122 |
| 12 | 125 |
| 13 | 128 |
| 14 | 131 |
| 15 | 134 |
| 16 | 137 |
| 17 | 140 |
| 18 | 143 |
| 19 | 146 |
| 20 | 149 |