Irregular Patterns of Correct Answers Shared by Multiple Students on Standardized

Multiple Choice

Irregular patterns of correct answers shared by multiple students on standardized tests have led to speculation that:

A) standardized tests are prone to errors.
B) students often cheat on tests by copying from each other.
C) teachers may have completed tests for students in order to raise performance levels.
D) researchers are motivated to alter data to reach statistical significance.