IQ CLASSIFICATION Percentile
High-IQ Societies | | IQ SD-15 - WAIS, WISC
Population Descriptors| | | SD=16 - Binet, CTMM, Otis-Lennon
| | | |
PROFOUND RETARD.--- .13e-8 | 00 -07 IQ SD-23.7 - Cattell (Verbal)
SEVERE RETARD.----- .29e-4 -5.00 25 20 | SAT Verbal
MODERATE RETARD.--- .0031 -4.00 40 36 | | GRE Verbal
MILD RETARD.------- .13 -3.00 55 52 | | | Miller Analogies
BORDERLINE RETARD.- 2.3 -2.00 70 68 | | | | SAT (old) Verbal+Math
DULL-NORMAL-------- 9.1 -1.33 80 79 | | | | | ACT Composite**
AVERAGE------------ 25.0 -0.68 90 89 | | | | | |
General population- 50.0 0.00 100 100 100 340 | | | |
60.0 +0.25 104 104 106 370 | | 790 19
70.0 0.53 108 108 112 410 | | 860 21
BRIGHT-NORMAL------ 75.0 0.68 110 111 116 430 | | 910 22
80.0 0.83 112 113 120 450 420 | 940
College Graduate--- 84.1 1.00 115 116 124 470 440 38 980 23
(ave.) 90.0 1.29 119 120 130 500 470 43 1040 24
SUPERIOR----------- 9l.O 1.33 120 121 132 510 480 44 1060 25
93.0 1.47 121 122 135 530 500 47 1100 26
IHIQS-------------- 95.0 1.63 125 126 139 550 530 52 1150 27
97.0 1.87 128 130 145 580 580 60 1190 28
VERY SUPERIOR------ 97.8 2.00 130 132 147 590 600 65 1220
Mensa, Camelopard- 98.0 2.06 131 133 149 600 610 66 1230 29
Intertel, TOPS----- 99.0 2.33 135 137 155 640 670 74 1310 31
Poetic Genius------ 99.5 2.57 139 141 161 670 710 81 1360 32
99.7 2.74 141 144 165 690 730 84 1390
ISPE/TNS/Ultranet 99.8 2.88 143 146 168 710 740 86 1420 33
Provisional-------- 99.9 3.09 146 149 173 730 760 89 1450 34
99.95 3.29 149 153 178 750 780 91 1480 35
99.97 3.43 151 155 182 760 790 92 1500
WAIS-III ceiling 99.98 3.54 153 157 184 770 800 93 1510
(IQ 155) 99.99 3.73 156 159 188 780 94 1530
99.995 3.90 158 162 192 790 95 1540
Prometheus--------- 99.997 4.02 160 164 195 800 96 1550
99.998 4.10 162 166 197 97 1560
Ultranet----------- 99.999 4.27 164 168 201 98 1570
99.9995 4.42 166 171 205 1580
99.9997 4.53 168 172 207
99.9998 4.61 169 174 209 1590
99.9999 4.75 171 178 212 1600 36
99.99995 4.89 173 178 216
Mega International- 99.99997 5.00 175 180 218
99.99998 5.07 176 181 220
99.99999 5.20 178 183 223
99.999995 5.33 180 185 226
99.999997 5.42 181 187 228
99.999998 5.50 182 188 230
99.999999 5.61 184 190 233
99.9999995 5.73 186 192 236
99.9999997 5.82 187 193 238
99.9999998 5.88 188 194 239
99.9999999 6.00 190 196 242