Although we don't need to satisfy all of the plugin's standards for readability, we do want to make sure that our posts are not so high-level or unreadable that people will not want to read our pieces.
*Reading ease: The Flesch reading ease test is used to determine what kind of reading level is necessary to read your post. Although we do not need to reach he the plugin's standards for reading ease, try to keep your reading score to about 25-50. For reference, anything below 30 is meant for college graduates; 25-50 is approximately high school or college reading level [https://yoast.com/flesch-reading-ease-score/].
*Passive voice: The plugin specifies 10%; this is a good goal.
*Sentence length: You should try to get your percentage of sentences with more than 20 words to approximately 40% or less. Click on the eye symbol next to the bullet point in the plugin to see which sentences are too long, and use this feature to find sentences which may be too complex or have too many points.