Free readability tools to check for Reading Levels, Reading Assessment, and Reading Grade Levels.
[ HOME ]
Check Your Readability:
Check Text Readability NOW
Free Readability Calculators
Learn about Readability Formulas:
Flesch Reading Formula
The Fry Graph
[ View All ]
[ View All Articles]
[ View All Articles]
English Writing Products:
Write for Us
(I also run a popular website to find freelance writing jobs)
How to Use the SMOG Readability Formula on Health Literacy Materials
A number of readability formulas can help you assess the literacy level of printed communications; however, the SMOG Readability Formula (Simple Measure of Gobbledygook) is a popular method to use on health literacy materials.
SMOG Readability Formula1. Count 10 consecutive sentences near the beginning of the text that you want to assess, 10 in the middle, and 10 near the end. Count as a sentence any string of words ending with a period, question mark, or exclamation point.
2. In the 30 selected sentences, count every word of three or more syllables. Any string of letters or numbers beginning and ending with a space or punctuation mark should be counted if you can distinguish at least three syllables when you read it aloud in context. If a polysyllabic word is repeated, count each repetition.
3. Estimate the square root of the number of polysyllabic words counted. Take the square root of the nearest perfect square. For example, if the count is 95, the nearest perfect square is 100, which yields a square root of 10. If the count lies roughly between two perfect squares, choose the lower number. For instance, if the count is 110, take the square root of 100 rather than that of 121.
4. Add 3 to the approximate square root. This gives the SMOG Grade, which is the reading grade that a person must have to understand your text.
The general rule of thumb is to aim materials for a 6th-grade reading level or lower.
Online calculators will do this assessment for you. Just go to http://www.wordscount.info/hw/smog. jsp and cut and paste your text into the calculator.
Assessing Pre-Existing Communication MaterialsAlthough it is easier to create materials for specific literacy levels, it is also likely you may want to adapt existing materials for your own use. Use the following assessment guide to determine if you should use an existing material or to develop one yourself. It is also a helpful tool to refer to as you develop your own materials.
Language and Tone