A Level II fieldwоrk educаtоr is cоmpleting а performаnce evaluation for an occupational therapy student at the end of their first week. The student arrives on time, follows dress code, and is polite with clients. However, when the supervisor provides corrective feedback about documentation errors, the student becomes defensive and dismisses the suggestions. According to fieldwork educators surveyed in the Delphi study, which professional behavior attribute is this student most critically failing to demonstrate?