Asked by Caitlyn McNamee on Jun 05, 2024
Verified
Which statement best describes deviation IQ scores
A) Raw IQ scores are translated into deviation IQ scores by way of percentiles within a normal distribution.
B) Raw IQ scores are translated into deviation IQ scores by way of a sliding scale.
C) Raw IQ scores are never translated into deviation IQ scores; the deviation IQ is calculated independently.
D) Raw IQ scores are translated into deviation IQ scores by way of use of the standard deviation unit within a normal distribution.
Deviation IQ Scores
A method of calculating IQ by comparing an individual’s test score with the average scores of others in the same age group.
Raw IQ Scores
The initial, unadjusted scores obtained directly from IQ tests before any age-related adjustments or standardization.
Normal Distribution
A statistical function that represents the distribution of many types of data; most values are centered around a mean value, creating a symmetrical bell-shaped curve.
- Grasp the concept and implications of deviation IQ scores in interpreting intelligence.
Verified Answer
VC
vicky choudharyJun 11, 2024
Final Answer :
D
Explanation :
Deviation IQ scores are calculated by using the standard deviation unit within a normal distribution. This means that the score is based on how far above or below the mean a person's raw score falls in comparison to the average scores of the population. The formula used to calculate deviation IQ scores is (raw score/average score) x 100 + 15. The resulting score has a mean of 100 and a standard deviation of 15, which allows for easier comparisons between individuals.
Learning Objectives
- Grasp the concept and implications of deviation IQ scores in interpreting intelligence.