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Lexile Text Analyzer
Learn how to prepare text and use your analyzer to get Lexile text measures.
About the Lexile Text Analyzer
The Lexile Text Analyzer® is designed to evaluate the reading demand or complexity of a text. This process is referred to as measuring, and the result is a text measure that represents the difficulty of analyzed text. The Lexile Text Analyzer measures text by evaluating the entire piece and its characteristics, such as sentence length and word frequency, which represent the syntactic and semantic challenges that a text presents to a reader. The outcome is the reading difficulty, expressed as a Lexile measure, along with the Word Count, Mean Sentence Length, Mean Log Frequency, and Early Reading Indicators for texts 650L and below.
Lexile Text Analyzer Spanish
How to use Lexile Analyzer Spanish
Understand Your Results Lexile Analyzer Spanish
Successful measurement will result in the following metrics.

Products, Tools, and Services
- Score Interpreter
  Retrieve student Lexile and Quantile measures and forecast performance on an upcoming assessment.
- Get Measurements
  Use our products, tools, services and APIs to get the measurements you need.
- Lexile Text Analyzer
  Learn how to prepare text and use your analyzer to get Lexile text measures.
  - About the Lexile Text Analyzer
    The Lexile Text Analyzer® is designed to evaluate the reading demand or complexity of a text. This process is referred to as measuring, and the result is a text measure that represents the difficulty of analyzed text. The Lexile Text Analyzer measures text by evaluating the entire piece and its characteristics, such as sentence length and word frequency, which represent the syntactic and semantic challenges that a text presents to a reader. The outcome is the reading difficulty, expressed as a Lexile measure, along with the Word Count, Mean Sentence Length, Mean Log Frequency, and Early Reading Indicators for texts 650L and below.
    - Before You Begin
    - Text Preparation Guidelines
    - Lexile Text Analyzer Editor Assistant
      How to use the Editor Assistant
    - Lexile Text Analyzer Professional
      How to use Lexile Analyzer Professional
    - Lexile Text Analyzer Spanish
      How to use Lexile Analyzer Spanish
      - About the Lexile Text Analyzer Spanish
        The Lexile® Analyzer Spanish uses the El Sistema Lexile para Leer, the Spanish-language version of the Lexile Framework for Reading, to measure Spanish-language text submissions. This guide explains how to use the Lexile Analyzer Spanish. For more information about the El Sistema Lexile para Leer, see concept/c_spanish_framework_about.html.
      - Disclaimers
      - Before You Begin
      - Text Preparation Guidelines
      - Sign In to Lexile Text Analyzer Spanish
      - Upload a Text File Lexile Text Analyzer Spanish
      - Enter Text Manually Lexile Analyzer Spanish
      - Revise Text Lexile Analyzer Spanish
        You can revise text immediately after a measurement event.
      - Understand Your Results Lexile Analyzer Spanish
        Successful measurement will result in the following metrics.
      - Usage History
        The Usage History feature simply records the user’s measurement events. The Usage History is not searchable and does not support the saving/accessing of measured files.
    - Text Analyzer API
      Use a single call to submit text for analysis
  - Lexile Text Analyzer FAQ
    The Lexile Text Analyzer® is designed to evaluate the reading demand or complexity of a text.
- WordBank
  Discover words across grade levels and subject areas that students will encounter in classroom reading.
- The Hub
  An online platform that provides easy access to more than a dozen reading and math tools.
- Quantile Sequencing Service
  Get research-driven information to direct users to appropriate resources for learning a skill or concept.

Understand Your Results Lexile Analyzer Spanish

Successful measurement will result in the following metrics.


Measure	Description
Lexile Measure	The quantitative complexity of the measured text reported numerically followed by an ‘L’ for Lexile.
Word Count	The total number of words measured in the text.
Mean Sentence Length	The average sentence length in the measured text.
Mean Log Word Frequency	The logarithm of the number of times a word appears in each 5 million words of the Lexile Corpus of 1.5 billion words. Word frequency is not the number of times a word appears in a specific passage, but the frequency of the word in the Lexile Corpus.