A: No, there is no correlation chart. There are several approaches to determining a text's level of complexity. Metametrics, the company that provides Lexile measures, takes one approach by measuring text complexity with a proprietary computer algorithm that measures sentence length, syllables, and word frequency.
The levels in the F&P Text Level Gradient™ are based on ten text factors: Genre/Form, Text Structure, Content, Themes and Ideas, Language and Literary Features, Sentence Complexity, Vocabulary, Words, Illustrations, and Book and Print Features. A level obtained from a Benchmark Assessment differs from that obtained with a Lexile assessment in that comprehension is a key factor in the Benchmark Assessment. A student might very well be able to decode high-level texts, but a Benchmark Assessment also determines if the student's comprehension is good enough for instruction.
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