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The Lexile PowerV® vocabulary service uses a book or piece of text to develop a vocabulary list that contains challenging words a student should know when reading a book. Education companies use this technology to build differentiated instructional capabilities into their reading programs and materials.

How Does It Work?

Lexile PowerV analyses the entire text to generate a PowerV vocabulary list. It chooses words that are:

  • Challenging. Harder words are identified as being above the Lexile® measure of the surrounding text.
  • Relevant. Words are chosen that appear more frequently in this text compared to texts in general.
  • Consequential. Words are identified as academic and important for success in learning.

Licensing Options

Two PowerV licensing options are available:

  1. A convenient API. Vocabulary lists can be generated for your text or from over 125,000 titles that are accessible when used with the Lexile Titles Database®.
  2. An add-on service for Lexile text measurement. By using this add-on, a Lexile PowerV vocabulary list (up to 20 words) will be returned with your certified Lexile text measure.

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