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What is a good IQ score for a 70 year old? Interpreting cognitive health in later life

According to psychometric experts, IQ is always measured relative to a person's age cohort, with the average set at 100. Therefore, a 'good' IQ score for a 70-year-old is considered the same as for any other age group, but interpreting this score requires understanding how intelligence changes throughout life and the distinction between different cognitive skills.