1. What is ORF Accuracy?

ORF (Oral Reading Fluency) Accuracy measures the percentage of words read correctly during an oral reading assessment. It's a key metric in evaluating reading proficiency and fluency.

2. How Does the Calculator Work?

The calculator uses the ORF Accuracy equation:

Where:

• \( Acc \) — Accuracy percentage
• \( C \) — Number of words read correctly
• \( T \) — Total number of words attempted

Explanation: The equation calculates the proportion of correctly read words relative to the total words attempted, expressed as a percentage.

3. Importance of ORF Accuracy

Details: ORF Accuracy is crucial for assessing reading development, identifying struggling readers, and monitoring progress in reading interventions.

4. Using the Calculator

Tips: Enter the number of words read correctly and the total number of words attempted. Both values must be positive numbers, and correct words cannot exceed total words.

5. Frequently Asked Questions (FAQ)

Q1: What is considered a good ORF Accuracy score?
A: Typically, 95-100% accuracy indicates independent reading level, 90-94% indicates instructional level, and below 90% indicates frustration level.

Q2: How is ORF different from WCPM?
A: WCPM (Words Correct Per Minute) measures speed and accuracy combined, while ORF Accuracy focuses solely on reading accuracy.

Q3: Should self-corrections be counted as errors?
A: Typically no - if a student self-corrects within 3 seconds, it's usually counted as correct.

Q4: What text types are best for ORF assessments?
A: Use grade-level appropriate, unfamiliar passages of 100-200 words for most accurate measurement.

Q5: How often should ORF be assessed?
A: For struggling readers, weekly or bi-weekly; for typical readers, 3-4 times per year is sufficient.