First of all, answering multiple choice questions doesn't teach students how to formulate answers; it teaches them how to select answers. Many times choosing the right answer is more a literary skill rather than of content knowledge. Multiple choice questions promote guessing, and if a guess is right, students get credit for something they didn't know. Moreover, the instructor is deceived into thinking the student understands the concepts being tested.
Many multiple choice questions do not challenge students to think. Instead they encourage the students to memorize. In my opinion, test bank questions are the worst. A simple analysis of this type of question in a variety of disciplines suggests that about 85% of the multiple choice questions test lower level knowledge, levels I (remembering) or II (understanding) of Bloom's Taxonomy.
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According to Victoria Clegg and William Cashin of K.U., "Many college teachers believe the myth that the multiple choice question is only a superficial exercise - a multiple guess - requiring little thought and less understanding from the student. It is true that many multiple choice items are superficial, but that is the result of poor test craftsmanship and not an inherent limitation of the item type. A well designed multiple choice item can test high levels of student learning, including all six levels of Bloom's Taxonomy of cognitive objectives." (Idea Paper No. 16, Sept. 1986)
So what are some things that make challenging multiple choice questions? Let's take a multiple choice test to help us answer that question.
Choose the best answer. Which multiple choice question is the hardest to answer?
- The one where it’s absolutely obvious that all choices are wrong answers.
- The one where the question and/or answers are so badly written that two or more answers could be correct depending on how the student interprets the question.
- The one where the list of possible answers are true or false; it depends on how the the student reads the question.
- The one question where it is really two questions in one, but the options only answer one part of the question.
- All of the above – except that there is no "all of the above" option given.
I trust you see the humor in this question. Unfortunately, I have seen one or all of the above on math tests given in our department.
Now let's look at two different multiple choice questions from a mealworm test available on Teachers Pay Teachers. The first one is pretty straight forward and requires little thinking on the part of the student. On Bloom's, it would represent a level I question - remembering.
Which tool will help you best see the mealworm up close?
Now let's look at two different multiple choice questions from a mealworm test available on Teachers Pay Teachers. The first one is pretty straight forward and requires little thinking on the part of the student. On Bloom's, it would represent a level I question - remembering.
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Which tool will help you best see the mealworm up close?
- Ruler
- Mirror
- Hands Lens
- Eyedropper
The next question from the same test requires the student to understand what a good scientific investigative question is. This would be a level IV question which is analyzing.
- Will the mealworm eat the fruit?
- How far can a mealworm travel?
- Will more mealworms go to the paper with an apple slice on it or to the one with no fruit on it.
- Why do mealworms move?
How does the life cycle of a butterfly differ from the life cycle of a frog?
- Only
the butterfly has an egg.
$2.75 - Only the butterfly has an adult stage.
- Only the frog has a tadpole.
- Only the frog has a pupa.
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If you would like help writing good, challenging questions of all kinds, you might check out Bloom's Taxonomy Made Simple. It is a five page handout that breaks the six levels of Bloom's down into workable, friendly parts, using the familiar story of The Three Little Pigs. Examples of good ideas of how to write assessment questions using all six levels of Bloom's are given. For your practice, a follow-up activity of 16 questions is included.
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