A researcher looks at the relationship between the scores for reading and age (in years) , for children in primary (elementary) school. The reading has 20 questions, so a score between 0 and 20 is possible. They find that the intercept = -5 and the slope = 2. What should they conclude?
A) Older children get higher scores on the test.
B) The predicted score of a 3 year old child would be 6.
C) You can't score -5 on the test, so they have made a mistake.
D) If they gave a 12 year old the test, they would expect a score of 24.

Question

Quizplus · Accepted Answer

The positive slope of 2 indicates that as age increases, the reading score also increases, suggesting older children tend to score higher.

A Researcher Looks at the Relationship Between the Scores for Reading