I was in the middle of taking the screening, and my session ended.

If you are applying to a position where the link to the Arena questionnaire is contained within your job application, log back into your application and click again on the link to the Arena questionnaire.

Alternatively, if you received an email with a link to access the Arena questionnaire, you can re-access it through that email. Any responses that you have already given are saved so you can pick up where you left off.