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Entrance Testing

The purpose of CHS admissions testing is to make certain that our school's academic program is a good match for applying students, and to determine course placement for Upper School students. A CHS Online Application and Application Fee must be submitted before admissions tests are scheduled.  Students applying for grades 5-12 should register for testing through the ISEE website link provided below.

A private screening appointment can be scheduled through the Admissions Office beginning in January. Depending on the information gained in the process, your child will take one or more of the following screenings:
Grades One through Five
  • The Stanford Achievement Test (Math and Reading)
  • The Otis Lennon School Ability Test (OLSAT)

Grades Six through Twelve

Please register online for the ISEE (Independent School Entrance Exam). 


The school code for CHS is: 070796.
Alternative Admissions Testing for Prospective Students
If prospective students have taken, in the past year, any of the tests listed below, CHS will waive the required ISEE test.  Please submit a copy with the application documents.
  • California Achievement Test (CAT)
  • Connecticut Mastery Test (CMT)
  • Education Records Bureau Testing (ERB)
  • High School Placement Test (HSPT)
  • Independent School Entrance Examination (ISEE)
  • Iowa Test of Basic Skills (ITBS)
  • Otis-Lennon School Ability Test (OLSAT)
  • Stanford Achievement Tests (SAT)
  • Secondary School Admissions Test (SSAT)
  • TerraNova (CTB/McGraw-Hill)
  • Wechsler Intelligence Scale for Children (WISC)
  • Woodcock-Johnson Test of Ability (WJ)
  • Woodcock-Johnson Test of Cognitive Abilities (WJ)

For high school applicants, the following are also accepted:  SAT, PSAT, ACT, and PLAN.