This came up in one of my technical writing classes: Evaluating the grade level and readability of a text. In a creative writing perspective, you want to write at the level your audience is familiar with. This rule is changed up a bit if you want to be writing for advanced readers, where you would want to target the interests of say, 8th graders but have them read at a 10th grade level.
To do this test, take a sample of your writing and copy-paste it into the text box. This site is the one I like best from my fifteen minutes of browsing around.
http://standards-schmandards.com/exhibits/rix/index.php
How this essentially works is it evaluates how many words you have that are 3+ syllables long, and calculates the frequency of them. It also looks at the average sentence length. There's an actual formula (go search wikipedia for Flesch-Kincaid and it should show up) but I don't feel like repeating it. So, go muse and have fun.
FYI, mine was grade 8 with a readability of 64.
Gender:
Points: 1900
Reviews: 12