The Stanford has suggested subtest times, but a student may continue as long as they are "working productively". There is a listening subtest through 8th grade.

Additional information is available from the publisher, Pearson Assessments.

Home schools can acquire the Stanford through:

• On-site: group testing
  
• At home: parent sent materials and is proctor
  
• Online: taken on computer with directions read in a phone call (no listening subtest offered)