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SLS Screener for Language & Literacy Disorders

SLS Screener for Language & Literacy Disorders


Tool name

SLS Screener for Language & Literacy Disorders

Use to assess

Screen students for language/literacy disorders, including dyslexia

Age range

6:0 – 18:11

Completed by

Parents, teachers, and students

Time commitment

3 minutes or less

Your new way to screen for language & literacy disorders, including dyslexia.

For use on its own or with the Test of Integrated Language and Literacy Skills™ (TILLS™), the Student Language Scale (SLS) reliably screens students ages 6–18 years for language/literacy disorders, including dyslexia. Filled out by parents, teachers, and students, the screener is a quick, cost-effective way to see how students are performing on academic tasks as compared to their same-age peers. Use the SLS to:

  • Screen for language/literacy disorders, including dyslexia, by gathering teachers’ and parents’ ratings of students
  • Gather input about a struggling student’s strengths and needs from multiple sources
  • Enhance home–school communication by gaining new insight into the student’s performance and the teacher’s and the parents’ and student’s perspectives on it, whether or not everyone agrees and whether or not there are concerns

Equally effective when used with an entire classroom or with individual students, the SLS is the tool you need to quickly gather valuable information about strengths and needs—and plan next steps for students at risk for disorders.


Why use the SLS?

  • Expert developed. The SLS developers are highly respected for their test-building skills and evidence-based work in the field of language and literacy assessment and school social work.
  • Fast and easy. The three-part SLS can be completed in just 3 minutes or less. Administration and scoring is simple—a pencil and paper are all you need.
  • Strong sensitivity and specificity. Sensitivity of the SLS to risk of language/literacy disorder is .90 for teachers and .85 for parents, and specificity (correct identification of typical learners) is .90 for teachers and .83 for parents.
  • Cost effective. The SLS helps you screen effectively at a lower cost than comparable tools on the market.


What You'll Need

SLS Screener for Language & Literacy Disorders

SLS Screener for Language & Literacy Disorders


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User's Manual

Gummed tablet of 50 TILLS™ Student Language Scale forms

SLS Quick Start Guide

Additional products

Free webinars and downloads

How to Screen for Language/Literacy Disorders—Including Dyslexia—with the SLS

This 30-minute webinar gives you a fast-paced inside look at the Student Language Scale (SLS)—your quick, easy, and reliable way to screen students ages 6–18 years for language/literacy disorders, including dyslexia.

View Recording 

 Inside Look at the SLS Screener

View this slideshow on the SLS to learn everything from the three purposes to how to administer the screener.

View Resource

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The SLS is an ideal companion to the groundbreaking TILLS™ test, which assesses students’ oral and written language skills. Screen students with the SLS, and if results indicate that a student is at risk, follow up with TILLS.