Hartmann, P.; Reuter, M.; Nyborga, H. (May 2006). „The relationship between date of birth and individual differences in personality and general intelligence: A large-scale study“. Personality and Individual Differences. 40 (7): 1349–1362. doi:10.1016/j.paid.2005.11.017. ციტატა: „To optimise the chances of finding even remote relationships between date of birth and individual differences in personality and intelligence we further applied two different strategies. The first one was based on the common chronological concept of time (e.g. month of birth and season of birth). The second strategy was based on the (pseudo-scientific) concept of astrology (e.g. Sun Signs, The Elements, and astrological gender), as discussed in the book Astrology: Science or superstition? by Eysenck and Nias (1982).“
Hartmann, P.; Reuter, M.; Nyborga, H. (May 2006). „The relationship between date of birth and individual differences in personality and general intelligence: A large-scale study“. Personality and Individual Differences. 40 (7): 1349–1362. doi:10.1016/j.paid.2005.11.017. ციტატა: „To optimise the chances of finding even remote relationships between date of birth and individual differences in personality and intelligence we further applied two different strategies. The first one was based on the common chronological concept of time (e.g. month of birth and season of birth). The second strategy was based on the (pseudo-scientific) concept of astrology (e.g. Sun Signs, The Elements, and astrological gender), as discussed in the book Astrology: Science or superstition? by Eysenck and Nias (1982).“