Andy conducts a study to improve reading scores in elementary schools. He obtains a sample of second-graders whose reading level was very much below average. He enrolls these students in a reading program and then measures their reading level six months later. Reading levels were significantly higher after the program than before. Because Andy selected participants on the basis of their extreme scores, he should be concerned а bout:a. maturation. b. statistical regression. c. history. d. instrumentation.

Question

Daniela Brock

English

13 October, 04:08

Andy conducts a study to improve reading scores in elementary schools. He obtains a sample of second-graders whose reading level was very much below average. He enrolls these students in a reading program and then measures their reading level six months later. Reading levels were significantly higher after the program than before. Because Andy selected participants on the basis of their extreme scores, he should be concerned а bout:a. maturation. b. statistical regression. c. history. d. instrumentation.

+5

Answers (1)

Know the Answer?

Leonardo Tran · Answer 1

B. Statistical regression.

Explanation:

In statistical modeling, regression analysis is a set of statistical processes for estimating the relationships between a dependent variable and one or more independent variables.