There are many ways students try to artificially inflate how they perform on exams. This leads to invalid and uninterpretable results. Elsevier’s HESI exams protect the validity of tests and scores with advanced technology, such as secure browsers, and by partnering with vetted remote proctoring vendors like ProctorU. In this whitepaper, psychometrician Kim Brunnert explains how to deter, detect and defend behavior to ensure valid testing with remote proctoring.