Which measure is calculated by dividing the number of correct responses by the total number of responses (correct and incorrect) and multiplying by 100?

Which measure is calculated by dividing the number of correct responses by the total number of responses (correct and incorrect) and multiplying by 100?

• A. Percent occurrence
• B. Percentage
• C. Percent correct
• D. Inter-response time (IRT)

Answer: (C)

This measures accuracy across a set of responses. When you take the number of correct responses and divide by the total number of responses, then multiply by 100, you get the percent correct. It shows the proportion of attempts that were right, expressed as a percentage for easy interpretation. For example, 6 correct out of 8 responses gives (6/8)×100 = 75%. The other terms don’t fit because they refer to different ideas: percent occurrence is about how often something happens, a plain percentage is a general term not tied to accuracy, and inter-response time is the gap between responses rather than a measure of how many were correct.

This measures accuracy across a set of responses. When you take the number of correct responses and divide by the total number of responses, then multiply by 100, you get the percent correct. It shows the proportion of attempts that were right, expressed as a percentage for easy interpretation. For example, 6 correct out of 8 responses gives (6/8)×100 = 75%. The other terms don’t fit because they refer to different ideas: percent occurrence is about how often something happens, a plain percentage is a general term not tied to accuracy, and inter-response time is the gap between responses rather than a measure of how many were correct.