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Guidelines for Calculator Use

To ensure fairness for all test takers, to avoid disturbances in the testing room, and to protect the security of the testing materials and process, the following types of calculators are not permitted:

  • pocket organizers
  • handheld or laptop computers
  • electronic writing pads or pen-input devices
  • models with a QWERTY (typewriter) keypad (although calculators with letters on the keys are permitted as long as the keys are not arranged in QWERTY format)
  • models with built-in capability to simplify algebraic expressions, multiply polynomials, or factor polynomials (often called Computer Algebra Systems), for example, CFX-9970G, TI-89, and TI-92
The following types of calculators are permitted only if they are used as noted:
  • models with paper tapes: The paper must be removed.
  • models that make noise: The sound feature must be turned off.
  • models that can communicate (transfer data or information) wirelessly with other calculators: The wireless transfer capability must be disabled by placing opaque material (such as masking tape) over the infrared data port.
  • Models that have a power cord: No power cords are permitted. The electrical cord must be removed.

NOTE: ACT monitors new calculators as they become available. For the latest list of prohibited calculators, students and institutions should periodically refer back to this web site (http://www.act.org) or call toll free 800/498-6481 for a recorded message.

Students may use any four-function, scientific, or graphing calculator on any COMPASS mathematics test, except as specified above.

If students plan to use a calculator of their own, they are responsible for bringing an acceptable one to the testing session. Sharing calculators during the test is not permitted, and the test proctor will not provide a calculator.

Students are also responsible for ensuring that their calculator works properly. If their calculator uses batteries, students must make certain that the batteries are strong enough to last throughout the testing session. Students may bring a spare calculator and extra batteries with them.

If students bring a calculator, the test proctor is to make sure that they (1) are using an acceptable type of calculator, (2) use their backup calculator only if the primary calculator fails, (3) do not share their calculator with any other test taker, and (4) do not use the calculator's memory to store any test questions or responses.