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Different Versions of AP Exams

Each year, the AP Program develops and administers multiple versions of the AP Exam for each AP subject. Each version of the exam is developed with the same format, number, and type of questions, but with little-to-no overlap in the exact questions.

Having multiple versions of the exam provides several key benefits for the AP community:

  • The risk of students sharing exam questions across time zones is significantly reduced
  • Schools have the option to offer late-testing to students impacted by exceptional circumstances
  • A complete AP Exam in 15 large-volume AP subjects can be released to teachers of authorized courses each year, for use as an in-class practice exam

To achieve these benefits, we must implement a more complex pattern of reusing particular questions in subsequent years and across exam versions, as well as administer the various exam versions to statistically representative groups. These processes allow the College Board to ensure that the different versions of each AP Exam generate comparable scores that are valid and reliable indicators of a student’s performance, regardless of the version of the exam taken.

This means that on regularly-scheduled testing dates, some schools in the United States will receive a version of the exam in selected subjects that is different from the version administered to most students worldwide. In most cases, half of a given school's students in the selected subject will take the most commonly administered version of the exam, and the other half will take the different version of the exam. In other cases, all of a given school's students in the selected subject will take the different version of the exam. Overall, only a small subset of students will take a different version of the exam on the regularly scheduled testing date.

The most commonly-administered set of free-response questions is posted on the College Board website two days after the exam. However, questions from the other exam versions are not released publicly and are considered secure. Students and teachers shouldn’t assume that the free-response questions on any given version of the exam will be released online, and must check the questions posted on the College Board website before discussing any free-response questions.

In addition, because a subset of students takes exams whose free-response questions are not released publicly after the exam:

  • All exam materials containing exam content (e.g., exam booklets, exams on CD, and master CDs) must be returned to the AP Program, including the separate orange booklets included with some exams.
  • Free-response booklets are not available for exams whose free-response questions are not released on the College Board website two days after the exam administration.
  • Schools may not borrow or lend exams. In the event that AP Services cannot fulfill a time-sensitive order, the school may offer a late-testing administration.

Frequently Asked Questions

Which subjects had additional exam versions in 2013?

In 2013, exam versions developed for use outside the United States, Canada, Puerto Rico, and the U.S. Virgin Islands were administered in 15 subjects: Calculus AB, Calculus BC, Chemistry, English Language and Composition, English Literature and Composition, Macroeconomics, Microeconomics, Physics B, Physics C: Electricity and Magnetism, Physics C: Mechanics, Psychology, Statistics, U.S. Government and Politics, U.S. History, and World History. A small subset of students in U.S. schools will also take these exam versions each year to help ensure score comparability across different versions of the exam. With the exception of the year prior to the launch of a redesigned exam, one complete AP Exam in each of these subjects will be released to teachers of authorized AP courses each year.

For some subjects that have undergone revision in 2013 — Biology and Spanish Literature and Culture — a small subset of students in U.S. schools will receive a different version of the exam during the regularly scheduled exam administration.

How does the College Board decide which version of the AP Exam my students will receive?

Different versions of an AP Exam are distributed to a randomly selected sample of schools of varying sizes across all major U.S. geographic regions. Selected schools are representative of the total population in terms of school characteristics and test performance. When a school receives two versions of an exam for a subject, approximately half of the students will take the version given to most U.S. students, and approximately half will take the additional version. Note that these additional exam forms represent around 6 percent of the total number of U.S. exams in these subjects (the percentage varies by subject, depending on the number of exams given).

For some subjects that have undergone revision in 2013 — Biology and Spanish Literature and Culture — a small subset of U.S. schools received a different version of the exam during the regularly scheduled exam administration. At these schools, approximately half of the students took the version of the Biology exam given to most U.S. students, and approximately half took the additional version; all of the students received the different version of the Spanish Literature and Culture exam. Note that these additional exam forms represent around 4 percent of the total number of U.S. exams in Biology and 23 percent of the total number of U.S. exams in Spanish Literature and Culture.

It is highly unlikely that a school will receive an additional version of the exam in the same subject in consecutive years.

Are there any special administration requirements for the additional versions of AP Exams given in some U.S. schools?

No. While the exam booklets will have different codes on their covers that distinguish the versions from each other, the school does not need to (and should not) take any action to determine whether it has received two versions of an AP Exam — instead, the AP Coordinator should simply distribute the exams as usual to students on exam day.

If my AP class is one of the classes for which two versions of the exam are administered this year, how can the College Board guarantee that one version will not be easier or more difficult than the other version?

Whether across years or across versions of an exam within the same year, the AP Program ensures the comparability of AP Exam scores. That is, a 3 in a given AP subject always has the same meaning, as does a 2, 1, 4, or 5. Another related assurance we make is that regardless of which version of an exam a student takes, his or her score would be the same. Both of these exam characteristics are supported by the process of equating.

Because no two versions of a test can be developed to statistically equivalent levels of difficulty, equating is an essential process in scoring of standardized tests for which score comparability is an important concern. So through similar procedures as are employed to ensure that an AP score of 3 in one year is comparable to a 3 in both the previous and following years, the AP Program ensures the comparability of scores that result from different versions of an exam administered in the same year, despite what may legitimately be seen as perceivable differences in exam difficulty.

For the 2013 AP Exams for which two or more versions were administered, two unique but related sets of equating procedures are being applied. The first involves the random distribution of the various exam forms to statistically equivalent groups of examinees. The second involves the inclusion of common items on all versions of the exams. Through statistical analysis of the data resulting from these two mutually reinforcing procedures, the AP Program ensures that students' scores are unaffected by which version of an exam the students took.

What will happen to my AP Instructional Planning Report if my students receive an additional version of an AP Exam?

In most cases, half of a given school's students in the selected subject(s) took the most commonly administered version of the exam, and the other half took the additional version of the exam. If this is the case at your school, your Instructional Planning Reports for the selected subject(s) will be divided into two separate segments: one for the students who received the most commonly administered version of the exam, and one for the students who took the additional version of the exam.
 
If your school received an additional version of the AP Spanish Literature and Culture Exam, then all your students took the additional version of this exam. If this is the case, your school's Instructional Planning Report for this subject will not be divided into separate segments, but will show the performance of your school's students compared to a smaller comparison group than usual: other students who also took the additional form of this exam.

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