To Investigate the Effect of Multitasking on Test Scores, Jenny

Multiple Choice

To investigate the effect of multitasking on test scores, Jenny conducted an appropriately controlled experimental study. Her inferential statistical analysis revealed that participants who multitasked while studying had significantly lower test scores than those who were not multitasking. She says, "Fantastic! I've just proved that multitasking while studying causes lower test scores." In response, her friend Ziva, who is knowledgeable about inferential statistics, is MOST likely to answer _____.

A) Your results clearly are practically important because there is a significant difference.
B) With a significant difference, there is no need to replicate the study.
C) You have not proved anything; inferential statistics involve probability, not certainty.
D) Both (b) and (c) are most likely responses to Samantha's comment.