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Computer-Based Assessment for Sampling Personal Characteristics (CasperTM)

All applicants to the Undergraduate MD Program at McMaster University are required to complete Casper to be eligible for admission.

Casper is an online test offered by Altus Assessments that assesses for the personal and professional characteristics we believe are important for successful students and graduates of our program. It is a complement to the other tools that we use for applicant screening. In implementing Casper, we are trying to further enhance fairness and objectivity in our selection process.

When signing up for Casper, you will be provided with a limited number of dates and times based on the admission timeline and requirements. Familiarize yourself with the most up-to-date information on test dates that can be found by browsing the test dates and times on the Casper website. We will not provide exceptions for applicants who are unable to take Casper during one of the available test dates or who are unable to complete Casper due to being located at an international site in which internet is not dependably accessible due to technical or political factors. Your Casper score is valid for only 1 application cycle – should you be unsuccessful and re-apply in a subsequent year, you must take Casper again in the new application year.

Altus Assessments, the company that administers Casper, will charge a fee. Pay this fee directly to Altus Assessments; it is not included in the OMSAS/McMaster application fee.

To sign up for Casper visit:

Choose: Canada/English/Undergraduate Medicine
Your test is called: CSP-10201 - Canadian Professional Health Sciences
School: McMaster University

Note: McMaster ​does not require Snapshot for the ​2022-2023 application cycle.

Frequently Asked Questions

  • Can I take Casper after the October 3, 2022 OMSAS application deadline?

    Yes ​Casper can be completed after the OMSAS application deadline. Please visit ​the ​Casper website (below) to find the applicable ​Casper test dates for McMaster applicants.  ​Casper normally ​updates these in early July, to coincide with the OMSAS application cycle.  Visit

  • What if I am applying to a medical school that requires me to take Casper in August or September, such as Dalhousie School of Medicine? In this case, do I write it twice?

    No, you will only write the Canadian Professional Health Sciences ​Casper test once per application cycle.  If you ​are required to write ​Casper in August or September [for schools with an earlier test date requirement, such as Dalhousie School of Medicine] and are also applying to McMaster, you can add McMaster to your distribution list, once you have received your OMSAS number. This will ensue that McMaster also receives your ​Casper scores from the test written in August or September.  You obtain an OMSAS number when you submit your application.  The OMSAS deadline for 2022 is October 3rd.   Your distribution list is on your ​Casper test record, on the reservations page. To add to your distribution list, click the small pencil icon, select schools and submit payment to secure your additions.
  • Are there any situations where I would write Casper more than once/application cycle?

    Yes.  If you are applying to the University of Ottawa Medical School French stream (and therefore you are writing ​Casper in French), you would need to write it a second time, in English, for McMaster.  If you are applying to programs that use a different version of ​Casper (i.e. Nursing Programs), you would need to write ​Casper for each program (the tests are different for medical school and other programs).  If you are applying to a medical school outside of Canada, you would need to write ​Casper for the Canadian medical school and additionally for the US or international medical school(s) you are applying to.

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