The current issue of Personality and Individual Differences is a tribute to Richard Lynn at age 80. Here is a portion of his conversation with Helmuth Nyborg that reviews his career:
HN: So then you needed a job.
RL: Yes, and I obtained a lectureship at the University of Exeter. I was now to enter the wilderness years and did not succeed in doing anything that I considered significant for the next twelve years. In 1959 I published a paper Environmental Conditions Affecting intelligence, in which I said that it was now established that genetic factors are the major determinant of intelligence, but that environmental factors are also involved. I proposed that these consisted of the quality and quantity of cognitive stimulation from others in the family. I suggested that this explained the tendency for only children to have the highest IQs, and for IQs to decline with increasing family size, and also that eldest and youngest children have higher average IQs than those in the middle of the family. I sent the paper to Sir Cyril Burt, who replied with a friendly letter saying that he agreed with me. After this, I corresponded with Sir Cyril from time to time and I always found him very friendly and helpful.
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