Question: Which of the following statements best describes deviation IQ? Need Assignment Help? Group of answer choices Deviation IQ can only be calculated for people aged 16 years and over Deviation IQ assumes the wider population's IQ has a non-normal distribution, reflecting ability differences in society Deviation IQ is calculated by dividing a person's mental age by their chronological age and then multiplying the result by 100 Deviation IQ compares an individual's performance on an intelligence test to the average performance of their age group