SLD Screening Assessments

Full assessments for Specific Learning Disorders (SLDs) like dyslexia, dysgraphia, or dyscalculia take time - usually two half-days - and can be costly (see Assessment Fees).  Screening tools, on the other hand, are quicker and easier to use, giving an idea of whether an SLD might be present. A screening assessment can be valuable on its own or can be used as a first step before a full assessment if needed.

All three screening tests below are paired with two tests of intellectual ability: Raven’s Standard Progressive Matrices Plus, which measures nonverbal thinking ability, and the Mill Hill Vocabulary Scale, which assesses verbal knowledge.  Measures of working memory and processing speed are also included.

SLD Screening Assessments

Full assessments for Specific Learning Disorders (SLDs) like dyslexia, dysgraphia, or dyscalculia take time - usually two half-days - and can be costly (see Assessment Fees).  Screening tools, on the other hand, are quicker and easier to use, giving an idea of whether an SLD might be present. A screening assessment can be valuable on its own or can be used as a first step before a full assessment if needed.

All three screening tests below are paired with two tests of intellectual ability: Raven’s Standard Progressive Matrices Plus, which measures nonverbal thinking ability, and the Mill Hill Vocabulary Scale, which assesses verbal knowledge.  Measures of working memory and processing speed are also included.

Screening for an SLD in reading (dyslexia)

A screening test can assess the likelihood of dyslexia. Opportunity Knocks uses GL Assessment's Dyslexia Portfolio for this, an in-depth, comprehensive screening tool designed to identify difficulties common to dyslexia.

 

Testing takes about two hours and gives a 'discrepancy index' score, ranging from 'no signs of dyslexia' to 'severe dyslexia,' by comparing the results to those of students already diagnosed with dyslexia. The report also outlines any strengths and weaknesses, which can help in creating a learning plan.

For many, this screening alone is enough to explain reading difficulties, but it can lead to a full assessment if needed. It’s generally recommended to try targeted support first and see if reading performance improves.

Screening for an SLD in writing (dysgraphia)

A test originally developed by the Hart Institute is used to screen for dysgraphia, along with selected tests from Woodcock-Johnson IV.

 

Screening for an SLD in maths (dyscalculia)

To screen for dyscalculia, Opportunity Knocks uses diagnostic tests developed by dyscalculia expert Steve Chinn. They estimate number sense, general maths knowledge, and identify any cognitive factors (such as working memory) that may contribute to maths difficulty. Selected tests from Woodcock-Johnson IV are also administered. Testing takes about two hours.

   

 

 

A screening test is often enough to identify reasons for maths difficulties. However, if needed, it can be followed by a full assessment to understand the cognitive profile and pinpoint specific knowledge gaps.

 

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