During the first quarter of his freshman year in high school, ...

[stevenposner]

During the first quarter of his freshman year in high school, Dinky received a very low score on a vocabulary test. Three months later Dinky took test again, and he scored much higher on the test. Dinky's improvement can be explained by:
 
  A) maturation
  B) regression toward the mean
  C) testing effects
  D) all of the above (all are good explanations)

Question 2

Regression toward the mean occurs because:
 
  A) measurement is almost always biased in one way or another
  B) measurements are usually a mixture of true scores and error
  C) no two measurements are ever exactly the same
  D) the act of taking a test usually influences people's future scores on the test

[Madisongo23]

Answer to Question 1

D

Answer to Question 2

B