The correlation coefficient between the age of a person and their IQ test score is found to be -1.0087.What can you conclude from this?Age is a good predictor of IQAge is not a good predictor of IQNone of the above
Question
The correlation coefficient between the age of a person and their IQ test score is found to be -1.0087.What can you conclude from this?Age is a good predictor of IQAge is not a good predictor of IQNone of the above
Solution
The correlation coefficient measures the strength and direction of a linear relationship between two variables. It ranges from -1 to 1. A value of -1 implies a perfect negative correlation, meaning as one variable increases, the other decreases at a consistent rate.
However, the value you provided (-1.0087) is outside this range, which is not possible in a real-world scenario. This might be due to a calculation error or a typo.
So, based on the provided correlation coefficient, we cannot conclude whether age is a good predictor of IQ or not. Therefore, the answer would be "None of the above".
Similar Questions
Which of the following is not true of the term IQ?Question 5Select one:a.Intelligence test scores of today are always based on the old formula of comparing a child’s mental age to their chronological ageb.Intelligence test scores of today are determined by comparing a person’s performance on the test with the performance of others in the same age groupc.Scores near 100 are average
People with IQ scores in the range of 50 or 55 to 70 are classified as having __________ intellectual disability.
The distribution of the IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 15. According to the standard deviation rule, only 0.15% of people have an IQ over what score?
Recall the 3-variable example from before:1. X1: Intelligence2. X2: Weight3. X3: AgeSuppose that these correlations are actually based on sample size n = 20:ˆρ = 1 0.6162 0.82670.6162 1 0.73210.8267 0.7321 1
As an adult ages, his/her physical strength declines. The relationship between age and physical strength is a(n) __________.Group of answer choicesA. nonexistent correlation.B. equal correlation.C. positive correlation.D. negative correlation.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.