Answer :
Louis, at six years old, scores at the level of an eight-year-old on an intelligence test. Using Terman's formula, his IQ would be calculated as 133.33, hence his IQ score would be 133.
According to Lewis Terman's method of calculating IQ, the formula used is IQ = mental age \\/ chronological age \\times 100. Since Louis is six years old and performs at the level of a typical eight-year-old, his mental age would be 8. Therefore, we would calculate his IQ using the given formula: IQ = 8 \\/ 6 \\times 100 = 133.33. In conclusion, Louis's IQ score would be 133.
