You recently took an intelligence test and learned that your score was among the 66% of scores that range from 85 to 115. What was your score more likely derived from? a. Deviation IQ score methods b. The Wechsler index procedure c. Intelligence quotient methods d. The Stanford-Binet score analysis

Question

You recently took an intelligence test and learned that your score was among the 66% of scores that range from 85 to 115. What was your score more likely derived from? a. Deviation IQ score methods b. The Wechsler index procedure c. Intelligence quotient methods d. The Stanford-Binet score analysis

Answer 1

The answer is **a. Deviation IQ score methods**. Here's why:* **Deviation IQ:** Deviation IQ scores are calculated by comparing an individual's performance on an intelligence test to the average performance of others in the same age group. The scores are scaled so that the average score is 100, with a standard deviation of typically 15. A score range of 85 to 115 represents one standard deviation above and below the mean. In a normal distribution, approximately 68% of scores fall within one standard deviation of the mean. The question states 66%, which is very close to this figure.* **The Wechsler index procedure:** While the Wechsler scales *use* deviation IQs, the index procedure refers to the calculation of specific cognitive indices (like Verbal Comprehension or Perceptual Reasoning) rather than the overall IQ score. The question refers to the overall score range, making this option less direct.* **Intelligence quotient methods (Ratio IQ):** The original concept of IQ was a ratio IQ, calculated by dividing mental age by chronological age and multiplying by 100. This method is no longer widely used, especially for adults, and doesn't directly relate to the score range provided.* **The Stanford-Binet score analysis:** The Stanford-Binet also uses deviation IQs. However, mentioning a specific test (Stanford-Binet) is less relevant than the general concept of deviation IQ, which applies to many intelligence tests. The question focuses on the score distribution, not a specific test.Therefore, since the score range of 85-115 corresponds to approximately one standard deviation around the mean of 100, and deviation IQ scoring uses this principle, it's the most likely method used to derive the score.

Question

You recently took an intelligence test and learned that your score was among the 66% of scores that range from 85 to 115. What was your score more likely derived from? a. Deviation IQ score methods b. The Wechsler index procedure c. Intelligence quotient methods d. The Stanford-Binet score analysis

Solution

Answer