Markus Jokela; G. David Batty; Ian J. Deary; Catharine R. Gale; Mika Kivimäki (2009). "Low Childhood IQ and Early Adult Mortality: The Role of Explanatory Factors in the 1958 British Birth Cohort". Pediatrics124 (3): e380 – e388. doi:10.1542/peds.2009-0334. பப்மெட்:19706576.
Bulmer, M (1999). "The development of Francis Galton's ideas on the mechanism of heredity". Journal of the History of Biology32 (3): 263–292. doi:10.1023/a:1004608217247. பப்மெட்:11624207.
Cowan, R. S. (1972). "Francis Galton's contribution to genetics". Journal of the History of Biology5 (2): 389–412. doi:10.1007/bf00346665. பப்மெட்:11610126.
Burbridge, D (2001). "Francis Galton on twins, heredity and social class". British Journal for the History of Science34 (3): 323–340. doi:10.1017/s0007087401004332. பப்மெட்:11700679.
Fancher, R. E. (1983). "Biographical origins of Francis Galton's psychology". Isis74 (2): 227–233. doi:10.1086/353245. பப்மெட்:6347965.
Nicolas, S.; Andrieu, B.; Croizet, J.-C.; Sanitioso, R. B.; Burman, J. T. (2013). "Sick? Or slow? On the origins of intelligence as a psychological object". Intelligence41 (5): 699–711. doi:10.1016/j.intell.2013.08.006. (This is an திறந்த அணுகல் article, made freely available by எல்செவியர்.)
Richardson, John T. E. (2003). "Howard Andrew Knox and the origins of performance testing on Ellis Island, 1912-1916". History of Psychology6 (2): 143–70. doi:10.1037/1093-4510.6.2.143. பப்மெட்:12822554.
Markus Jokela; G. David Batty; Ian J. Deary; Catharine R. Gale; Mika Kivimäki (2009). "Low Childhood IQ and Early Adult Mortality: The Role of Explanatory Factors in the 1958 British Birth Cohort". Pediatrics124 (3): e380 – e388. doi:10.1542/peds.2009-0334. பப்மெட்:19706576.
Bulmer, M (1999). "The development of Francis Galton's ideas on the mechanism of heredity". Journal of the History of Biology32 (3): 263–292. doi:10.1023/a:1004608217247. பப்மெட்:11624207.
Cowan, R. S. (1972). "Francis Galton's contribution to genetics". Journal of the History of Biology5 (2): 389–412. doi:10.1007/bf00346665. பப்மெட்:11610126.
Burbridge, D (2001). "Francis Galton on twins, heredity and social class". British Journal for the History of Science34 (3): 323–340. doi:10.1017/s0007087401004332. பப்மெட்:11700679.
Fancher, R. E. (1983). "Biographical origins of Francis Galton's psychology". Isis74 (2): 227–233. doi:10.1086/353245. பப்மெட்:6347965.
Richardson, John T. E. (2003). "Howard Andrew Knox and the origins of performance testing on Ellis Island, 1912-1916". History of Psychology6 (2): 143–70. doi:10.1037/1093-4510.6.2.143. பப்மெட்:12822554.