Assessment of adults and children for Learning Disabiltiies involves a variety of test instruments that claim to measure intellectual ability, processing ability, and many areas of academic skill.
To understand the test results, one must understand simple statistics. To know if a test actually measures the skill it claims to measure, (ex. reading) one must understand the test's methodology.
The Educational Testing Service (ETS) maintains data on an extensive collection of standardized tests and measurement devices (screeners, surveys, external tests, and related materials) from a variety of authors and publishers. Test information is available to professionals and laypersons, here, in the