matching the best learning opportunities and school with your child


Our mandatory admission assessments help Walden to build its community of learners and invite applicants to join the learning community that is right for them. The highly regarded OLSAT (Otis-Lennon School Ability Test) assessments are designed for K-12 students applying to independent schools that require entrance exams for U.S. and international students. Designed by experts to measure both reasoning and achievement skills, these assessments have helped parents, students, and schools find the perfect match for decades.

SChedule your assessment

To schedule your child’s OLSAT assessment at Walden School, please click here to select an available date on our calendar. If you have any questions, please contact Director of Admissions, Melinda Ellingsworth, at


About the olsat

The Otis-Lennon School Ability Test (OLSAT), published by Pearson NNC, assesses a student's cognitive (e.g., verbal, nonverbal and quantitative) abilities that relate to his or her academic success providing educators with invaluable information in order to enhance insights gained from traditional achievement tests.

The student will have between 60-80 minutes to complete a 40-70 question test, depending on the OLSAT test level. The test is administered to younger children in a one-on-one setting, while older children take the test in a group setting. Test questions are arranged so that questions do not become more difficult as the test progresses. Students are not deducted points for answering a question incorrectly.


olsat question types

The OLSAT is comprised of both verbal and nonverbal questions, measuring a student's ability to cope with school learning tasks. In all, there are 21 different question types on the OLSAT. On the test, students will need to:

• Follow directions

• Detect likenesses and differences

• Recall words and numbers

• Classify items

• Establish sequences

• Solve arithmetic problems

• Complete analogies



practice tests



understanding results