Australian Aborigines
References for the whole page « Race differences in intelligence. An evolutionary Analysis », Chapter 8 pp. 68-77, Richard Lynn, Washington Summit Publisher, 1st edition 2006 and 2nd edition 2015.
1. IQ of Australian Aborigines
2. Brain Size of Australian Aborigines and Europeans
1. IQ of Australian Aborigines
The median value is 62. This corresponds to the mental age of an 11 year old European.
Table 8.1. IQ of Australian Aborigines
Age | N | Test | g | Reas | Verb | Vis | Reference | |
1 | Adults | 56 | PM | 66 | 66 | 66 | Porteus, 1931 | |
2 | Adults | 24 | PM | 59 | 66 | 59 | Piddington & Piddington, 1932 | |
3 | Adults | 268 | Varions | 58 | – | – | Porteus, 1933a, 1933b | |
4 | Adults | 31 | AA/PF | 69 | 69 | Fowler, 1940 | ||
5 | Adults | 87 | PM | 70 | 70 | Porteus & Gregor, 1963 | ||
6 | 11 | 101 | QT | 58 | – | Hart, 1965 | ||
7 | Adults | 103 | PM | 74 | 74 | Porteus et al., 1967 | ||
8 | 5 | 24 | PPVT | 62 | 62 | – | De Lacey, 1971a, 1971b | |
9 | 6-12 | 40 | PPVT | 64 | 64 | De Lacey, 1971a, 1971b | ||
10 | Adults | 60 | CPM | 53 | 53 | – | Berry, 1971 | |
11 | 3-4 | 22 | PPVT | 64 | – | 64 | Nurcombe & Moffit, 1973 | |
12 | 6-14 | 55 | PPVT | 52 | 52 | Dasen et al., 1973 | ||
13 | 9 | 458 | QT | 58 | – | McElwain & Kearney, 1973 | ||
14 | 13 | 42 | SOT | 62 | – | Waldron & Gallimore, 1973 | ||
15 | 6-10 | 30 | PPVT | 59 | 59 | – | De Lacey, 1976 | |
16 | 25 | 22 | CPM/KB | 60 | 60 | – | 67 | Binnie-Dawson, 1984 |
17 | 4 | 55 | PPVT | 61 | – | 61 | – | Nurcombe et al., 1999 |
2. Brain size of Australian Aborigines and Europeans
Table 8.3. Brain size (cc) of Australian Aborigines and Europeans (sample sizes in parentheses)
Europeans | Aborigines | Difference | Reference | |
1 | 1,426 | 1,229 (8) | 197 | Morton, 1849 |
2 | – | 1,217 (325) | – | Morant, 1927 |
3 | 1,198 (109) | Wagner, 1937 | ||
4 | 1,206 (29) | Klekamp et al.,1987 | ||
5 | 1,369 | 1,225 | 144 | Smith & Beals,1990 |
6 | 1,319 | 1,240 | 79 | Jurgens et al.,1990 |
7 | – | 1,178 (73) | – | Freedman et al.,1991 |
References for the whole page « Race differences in intelligence. An evolutionary Analysis », Chapter 8 pp. 68-77, Richard Lynn, Washington Summit Publisher, 1st edition 2006 and 2nd edition 2015.