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Maddy and Tara were both born on August 31 in the same year but Tara's parents waited an extra year before enrolling her in kindergarten. So Maddy started kindergarten when she was 5 and Tara started when she was 6. So at age 7, Maddy has been in school for two years and Tara has been in school for one year. Based just on this information, who would you expect to have a higher at age 7?
a) They should have the same IQ.
b) It is impossible to predict, since IQ is not related to schooling .
b) The answer depends on who was born earlier in the day on August 31 .