(SOI-LA™) Structure of Intellect Learning Abilities Test™

by Mary Meeker, EdD and Robert Meeker, EdD

(SOI-LA™) Structure of Intellect Learning Abilities Test™

by Mary Meeker, EdD and Robert Meeker, EdD
Benefits Provides a detailed profile of each student's cognitive strengths and weaknesses–information that leads to specific educational interventions
Ages For students in grades 2 through 12, or adults
Admin time 1-2.5 hours
Format 26 subtests, each measuring a separate cognitive ability
Publish Date 1985
Qualifications Level C required.
About Qualification Levels
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About This Product

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Recognizing that students have different types of intelligence, the Structure of Intellect Learning Abilities Test (SOI-LA) tells you “what kind,” not just “how much.” The SOI-LA assesses up to 26 separate cognitive abilities. Instead of a global IQ score, it provides a detailed profile of each student’s intellectual strengths and weaknesses—a profile that improves student evaluation, simplifies placement, and guides teaching.

The SOI-LA is based on Guilford’s multifactor model of intelligence, which classifies cognitive activity according to three dimensions: 


  • Cognition
  • Memory
  • Evaluation
  • Convergent Production
  • Divergent Production


  • Figural
  • Symbolic
  • Semantic
  • Behavioral


  • Units
  • Classes
  • Relations
  • Systems
  • Transformations
  • Implications

Each of 26 subtests measures a single three-dimensional cognitive factor. For example, the first subtest, CFU, measures “cognition of figural units.” The test Manual describes each of the 26 abilities assessed, explains its relation to academic achievement, and notes the significance of high and low scores.    

The SOI-LA is available in two Alternate Forms, A and B, which are ideal for pre- and posttesting. Each includes all 26 subtests and yields a comprehensive profile of abilities. Either form can be individually or group administered to students in Grades 2 through 12, and to adults. A school psychologist or counselor can give Form A or B in about 2.5 hours.    

To assess specific areas, two additional forms are also available: the Gifted Screening Form (Form G), which is useful in identifying gifted students (second grade through adulthood); and the Primary Form (Form P), which assesses reading and cognitive style (K through third grade), and presents items in larger print, on larger paper, so that younger children can read them more easily. These forms combine selected SOI-LA subtests, and each requires about 1 hour to administer.    

In addition to general cognitive assessment, the SOI-LA is widely used to diagnose learning disabilities, prescribe educational interventions, profile strengths and weaknesses, identify reasons for underachievement, match cognitive style and curriculum material, and screen for gifted students. The Divergent Production subtests, which are unique to the SOI-LA, are particularly useful in assessing creative thinking.

Because the SOI-LA measures discrete cognitive abilities, test results lead to specific educational interventions. The SOI-LA profile tells you at a glance which abilities are poorly developed and which are strong enough to serve as the basis for further intellectual growth. To help you apply this information in the classroom, the Manual presents teaching strategies for each ability assessed.