Of the following, ______ cannot explain the results of this study.
A) exercise decreases memory abilities
B) more subjects with better memory were assigned to the Sudoku group than the exercise group
C) subjects in the exercise group paid l attention to the study list than subjects in the Sudoku group
D) exercise increases memory abilities

Question

Quizplus · Accepted Answer

The statement that "exercise increases memory abilities" cannot explain the results of a study if the implication is that exercise had a negative or no impact on memory abilities in comparison to another activity (e.g., Sudoku). If exercise were to increase memory abilities, it would not be a factor that could not explain the results, assuming the results showed no improvement or a decline in memory abilities for the exercise group.

Of the Following, ______ Cannot Explain the Results of This