I recently read a local newspaper’s article about a small drug discovery company. In the details was a description of a microplate—small plastic trays with many tiny wells, about the depth of a thin paperback book. For a split second, I wondered why they spent so much time describing such a commonly used consumable. Then I remembered that this wasn’t a scientific portal, this newspaper was available to the general public—with many education levels, market experiences and even language backgrounds. Not everyone has contemplated the use of skirted vs. unskirted vs. semi-skirted or discussed how many wells to blank without inferring mortal danger to the poor wells.
This newspaper was right—it’s important to write to your audience.
When writing technical articles and communications to peers, a more complex writing style is useful to clarify your message. On the other hand, general releases like corporate events and news can be accessed by readers unfamiliar with the industry. Too many intricate details can scare a potential investor away.
There are several methods to gauge the readability of your written communications, most using calculations compared to a chart or graph. Popular methods include:
- Gunning Fog Index. From a 100-word sample, determine the average sentence length. Add this to the percent of multi-syllable words. Multiply by 0.4. The result is the grade level required to understand the sample.
- Fry’s Readability Graph. From three 100-word samples, plot the average number of syllables and the average number of sentences from each passage on a pre-set Fry graph. The point where the two values meet determines the grade level required to understand the sample.
- Flesch-Kincaid Formula. From any written piece, plot the average number of syllables per word against the average number of words per sentence. Or, multiply the average sentence length by 1.015 and the average word length by 84.6. Add the two numbers. Subtract this sum from 206.835. Or (my personal favorite), in Microsoft® Word, go to Tools > Options. Click on the Spelling & Grammar tab. Under the Grammar section, click the “show readability statistics” box, then click the “Okay” button. You only have to do this step once. Then, go to Tools > Spelling & Grammar… After the document is analyzed, a summary report, including readability score, is automatically calculated. Any of these Flesch-Kincaid methods will provide the grade level required to understand the article.
These formulas are subjective and should be used as a general guide only. Appropriate readability can help to engage readers and clarify your message. And for the curious, this blog scored near grades 11, 10, and 10 respectively.