Travis is administering conventional IQ tests to people aged 5 to 25. At what age are the mental abilities of his test subjects likely to plateau?
A) early childhood
B) early-to-mid-adolescence
C) mid-to-late adolescence
D) late adolescence and early adulthood

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The Answer of Travis is administering conventional IQ tests to people aged 5 to 25. At what age are the mental abilities of his test subjects likely to plateau?
A) early childhood
B) early-to-mid-adolescence
C) mid-to-late adolescence
D) late adolescence and early adulthood

Travis Is Administering Conventional IQ Tests to People Aged 5