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Mastering the Art of the True/False Question: A Guide to Assessment Design

True/False (T/F) items are a staple in educational assessment, prized for their ability to cover a broad range of content quickly. However, writing effective T/F questions is harder than it looks. A poorly constructed question can lead to high guessing rates and unfair testing.

To build reliable, valid assessments, consider these best practices for creating True/False items based on industry standards. 1. Test Facts, Not Opinions

True/False items are best used for testing direct comprehension of facts, specific information, or straightforward definitions. Avoid: “Learning grammar is fun.” (Subjective)

Better: “Grammar is a component of language.” (Objective fact) 2. Avoid Ambiguity and Qualifiers

Use statements that are unequivocally true or false. Avoid qualifiers such as “usually,” “generally,” or “sometimes,” as these rely on individual perception. Avoid: “It is often cold in December.”

Better: “December is a winter month in the Northern Hemisphere.” 3. Steer Clear of Negative Statements

Negative statements, especially double negatives, confuse test-takers and measure reading speed rather than knowledge. Avoid: “It is not true that water does not freeze at 0∘C0 raised to the composed with power C Better: “Water freezes at 0∘C0 raised to the composed with power C 4. Keep Statements Short and Simple

Extraneous, flowery language creates unnecessary complexity. Keep statements focused, concise, and focused on one specific point. 5. Balance True and False Statements

Do not simply take a true statement and insert “not” to make it false. While tempting, this often makes false answers too obvious. Instead, aim for a roughly equal balance between true and false answers, or slightly more false answers, as students tend to guess “true” when unsure. 6. Avoid Absolute Language

Words like “always,” “never,” “none,” and “impossible” are frequently red flags for a false statement. Conversely, words like “usually” or “generally” often signal a true statement. Effective questions avoid these absolute indicators to prevent rewarding test-wise strategies over actual knowledge.

By following these guidelines, you can transform True/False questions from simple guesses into robust tools for testing comprehension.

If you would like to test this, I can provide some example questions for you to mark as True or False based on these rules. Checklist for Writing True/False (T/F) Items

Generally, avoid the use of words which would signal the correct response to the test-wise student. Absolutes such as none, never, University of Florida Assessment: True/false questions – Camosun Research Guides.