Lexile reader measures and text measures share a scale but describe different things. Text measurement considers linguistic characteristics such as word frequency and sentence length; early-reading models also consider additional features. Longer words or sentences do not, by themselves, establish a particular score.

These ten versions intentionally increase linguistic and conceptual demands. The numeric targets are placeholders pending analysis, and actual results may differ or overlap. A text measure is not an age rating, a grade placement, or a complete description of comprehension. Interest, background knowledge, purpose, and support matter.

To replace the targets with measured results, submit each complete passage separately to an appropriate MetaMetrics tool and preserve the returned range or measure accurately. A range from an analyzer is not the same as a certified measure.

Sources: SDLA: Understanding Lexile Measures · MetaMetrics Text Analyzer user guide · Lexile Hub FAQs.