What type of questions are considered inappropriate for an IQ test?

Questions about personal preferences are considered inappropriate for an IQ test because IQ tests are designed to measure cognitive abilities and intellectual potential, rather than subjective opinions or choices. These tests focus on logical reasoning, mathematical skills, and verbal comprehension—all areas that reflect a person's intelligence and cognitive processing abilities. Personal preference questions do not measure cognitive skills or problem-solving abilities; instead, they tap into individual tastes or interests, which are not relevant to assessing someone's intellectual capacity. Thus, including such questions would not provide valid insights into a person's IQ.