I am an administrator at an Adult Literacy center. We have recently converted to using Lexile measures to explain student gains instead of "Grade Level Equivalencies." We used to project that our students would grow .5 grade level equivalencies after 60 hours of literacy instruction. Now that we can use the Scaled Score on the TABE (Test of Adult Basic Education), and converting it into the Lexile Analyzer, we are confused about perceived expected growth. We are hoping to move a half of a standard deviation of a Lexile level (range).
What is a full standard deviation at each Lexile range? Is there a norm reference we can compare to nationally for Adult Education standard deviation growth gains?
Thanks in advance for your help.
Thank you for your interest in The Lexile Framework for Reading!
Because there are a number of alternative ways to conceptualize student growth and to measure it, states face a challenge to design and implement accountability systems that address a variety of information needs and still comply with state and federal laws. In this context, there are naturally many viewpoints about how best to conceptualize and measure student growth and to set appropriate goals for growth. This makes it especially important for students, parents and educators to better understand student growth, how it is measured, and how growth expectations may be set in different contexts for different purposes.
Here is a white paper on expected growth that I believe will help:
Let us know if you have any further questions!
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