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Alan Ryan (Opinion, April 28) thinks, rightly, that IQ is pseudo-scientific junk, but is moved to say so only by the chance it gives him to attack the people on the receiving end of it. If it is junk, the real offence is that an Oxford principal "with a tolerable degree of self-confidence" plus plenty of power does not give himself "some intellectual exercise" and use his column inches to explain this in detail.

John Stuart Mill's moral priority would have been the New College psychology department.

C. F. Goodey

London