Good question. It is interval. Differences in IQ are meaningful. See: http://www.math.sfu.ca/~cschwarz/Stat-301/Handouts/node5.html
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The IQ scale is considered interval because the differences between scores are standardized and consistent across the range of scores. This means that a difference of 10 points on the IQ scale represents the same change in intelligence level regardless of where on the scale it occurs.
Ordinal utility is a concept in economics that refers to the ranking of preferences among different alternative choices based on satisfaction or utility derived by an individual. It does not assign a specific numerical value to the level of satisfaction, but simply ranks the different choices in order of preference. This approach helps in understanding consumer behavior and decision-making without needing to quantify utility levels.
High IQ means people are genius from taking the test even it takes along time to be a high IQ to be a genius.
An IQ score of 113 for a fifteen-year-old girl falls within the average range, as the average IQ score is typically around 100. This score indicates that she has cognitive abilities that are slightly above average for her age group. It's important to remember that IQ scores are just one measure of intelligence and do not capture the full range of a person's abilities or potential.
You can check your IQ by taking a standardized test administered by a licensed psychologist or through online IQ tests. Keep in mind that an IQ score is just one measure of intelligence and may not fully capture your overall abilities and strengths.
The Wechsler Intelligence Scale for Children (WISC) is an IQ test designed for assessing the cognitive abilities of children and adolescents aged 6 to 16. It measures different aspects of intelligence, such as verbal comprehension, perceptual reasoning, working memory, and processing speed. The results of the test can help in identifying cognitive strengths and weaknesses, as well as informing educational and psychological interventions.