Text Box: Explanation of K-2 ThinkLink Scores – from Discovery Assessment. Text Box: The levels are relative to "% of the students" in our multi-state testing population. Text Box: The Early Skills Reading Assessment is a series of tests in phonics-alphabetic skills, vocabulary, and listening/reading comprehension. The Early Skills Math Assessment is a series of tests in numbers, computation, algebra, geometry, measurement, data analysis, and problem solving. Below is an explanation of the report scores. ESA performance bands (20/30/30/20):