I.Q. | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 |
Gen'l Population percentiles: | 99.94 | 99.95 | 99.96 | 99.97 | 99.975 | 99.98 | 99.984 | 99.988 | 99.991 | 99.993 |
Colloquy percentiles: | 82 | 85 | 88 | 90 | 92 | 93 | 95 | 96 | 98 | 99 |
Otis-Beta | 144 | 145 | 146 | 147 | 148 | 149 | 150 | |||
Wechsler/ WAIS | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 |
Otis-Gamma | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | |
Stanford-Binet | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 |
CTMM | 152 | 153 | 154 | 155 | 156 | 157 | 158 | *(3) | ||
Otis-Lennon | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | |
Cattell Verbal: form III-B | 175 | 177 | 178 | 180 | 181 | 183 | 184 | 186 | 187 | *(5) |
Cattell Culture Fair: form 3A | 40 | 41 | 42 | |||||||
Cattell Culture Fair: form 3B | 42 | 43 | 44 | |||||||
Raven Advanced Progr. Matrices | 36 | |||||||||
Miller Analogies Test, form K | 90 | 91 | 92 | 94 | 95 | 96 | 97 | 99 | 100 | *(2) |
Miller Analogies Test, form L | 91 | 92 | 94 | 95 | 97 | 98 | 99 | |||
Miller Analogies Test, form M | 95 | 96 | 98 | 99 | 100 | |||||
Miller Analogies Test, form R | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 91 | 92 |
Miller Analogies Test, form S | 88 | 90 | 91 | 92 | 93 | 95 | 96 | 97 | 98 | 100 |
Miller Analogies Test, form V | 97 | 98 | 100 | |||||||
Miller Analogies Test, form W | 91 | 92 | 94 | 95 | 96 | 98 | 99 | 100 | ||
US Army AGCT/ GT | 159 | 161 | ||||||||
ACT | 35 | 36 | ||||||||
Scholastic Aptitude Test (orig.) | 1490 | 1510 | 1520 | 1540 | 1550 | 1560 | 1580 | 1590 | *(4) | |
Nat'l Merit NMSQT | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | *(1) |
Disclaimer: These tables summarize the present evaluations of scores for Colloquy, based upon the best data available to us as well as reasonable extrapolations from (a) authoritative tables of percentiles 50, 75, 90, 95; (b) widely accepted mean and sd values; (c) attempts to model normal population projections from undergraduate or graduate level test populations. In short, these values are estimates, subject to much debate and occasional revision. Our intent is simply to provide reasonable estimates as a basis of comparison, with full knowledge that while tests of mental ability are reaching for a common g-factor, they in fact present a spectrum of content and method of administration. Individuals are not without a certain range of fluctuation in performance too, so it's advisable to view test results and evaluation with a balanced perspective. Nothing here is intended to "step on the toes" of professionals in the field or psychometric officers of other societies.
Notes:
*(2) The Miller Analogies Test is, by content, the ideal selection instrument for any group of the nature of Colloquy ... the high scorer is doubtless the possessor of a finely-cultivated knowledge base as well as formidable skills in logical thinking. Seven forms are administered and the tables have been updated accordingly to reflect the different values for each. The previous listing was appropriate for form V only. Composite data across all forms would be most similar to the values listed for form M.
*(3) California Test of Mental Maturity, to the best of our knowledge, is equivalent to the American Mensa Admission Test on the Mensa score reports of recent years. The test administration manual recommends that scores above 150 IQ simply be regarded as an indeterminate 150+.
*(4) composites of verbal plus math section scaled scores on the Scholastic Aptitude Test prior to the recentering changes applied since April of 1995.
*(5) The test administrator's manual for the Cattell Verbal form III-B provided adult raw score conversions only up to 161 IQ on this scale. In more recent years, this has been extended as there was a wide range of raw scores above this level ... and the scale itself has been used internationally for reporting other test results.
*(1) These values are for the original National Merit Scholarship Qualifying Test used in the '60s and early '70s. The NMSQT as a separate test was later discontinued in favor of a selection score derived from a summation of PSAT scaled scores, the verbal score receiving double weighting. By 1995, a writing sample was incorporated, and the National Merit selection index has thereafter been derived as the sum of writing sample, verbal, and math scaled scores.
Group statistics for Colloquy members