On a multiple-choice exam, if you think you have made a mistake, is it better to...

   

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On a multiple-choice exam, if you think you have made a mistake, is it better to stick with your first choice or to erase and change your answer? Instruction Don't Change! Change! 197 128 29,446 14,465 One of the authors instructed her students to change the answer if the second answer they got seemed better than the first (Change!). Her colleague told his students that their first answer was usually the best and they should avoid changing answers (Don't Change!). After both classes had taken several multiple-choice exams, the exams were studied to see whether answers were erased and replaced with different answers. The results are shown in the accompanying table. Complete parts a through c below. Changed Behaviour Unchanged a. What is the percentage of answers that were changed for the students who were told not to change their answers? % (Round to three decimal places as needed.) b. What is the percentage of answers that were changed for the students who were told to change their answers? % (Round to three decimal places as needed.) c. Compare the answers to parts a and b, and state whether you think the instruction had any effect on whether students changed their answers. The percentage of answers that were changed for the students who were told to change their answers is changed their answers. O the percentage for students who were told not to change their answers. This the idea that the instruction had an effect on whether students The percentage of answers that were changed for the students who were told to change their answers is changed their answers. the percentage for students who were told not to change their answers. This the idea that the instruction had an effect on whether students On a multiple-choice exam, if you think you have made a mistake, is it better to stick with your first choice or to erase and change your answer? Instruction Don't Change! Change! 197 128 29,446 14,465 One of the authors instructed her students to change the answer if the second answer they got seemed better than the first (Change!). Her colleague told his students that their first answer was usually the best and they should avoid changing answers (Don't Change!). After both classes had taken several multiple-choice exams, the exams were studied to see whether answers were erased and replaced with different answers. The results are shown in the accompanying table. Complete parts a through c below. Changed Behaviour Unchanged a. What is the percentage of answers that were changed for the students who were told not to change their answers? % (Round to three decimal places as needed.) b. What is the percentage of answers that were changed for the students who were told to change their answers? % (Round to three decimal places as needed.) c. Compare the answers to parts a and b, and state whether you think the instruction had any effect on whether students changed their answers. The percentage of answers that were changed for the students who were told to change their answers is changed their answers. O the percentage for students who were told not to change their answers. This the idea that the instruction had an effect on whether students The percentage of answers that were changed for the students who were told to change their answers is changed their answers. the percentage for students who were told not to change their answers. This the idea that the instruction had an effect on whether students

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To calculate the percentage of answers that were changed for each group we ... View the full answer