In Mrs. Dey's case, who is responsible for violating a professional standard?

The principal is responsible for violating a professional standard primarily because he or she has made a judgment about Mrs. Dey's qualifications based solely on her age, rather than on her skills, experience, and capabilities as an educator. This type of age bias undermines the principles of equity and fairness that are vital in the educational profession. Professional standards require that all educators be assessed based on their competencies, qualifications, and performance, rather than personal characteristics such as age.

When the principal disregards Mrs. Dey's qualifications in favor of a stereotype associated with her age, it reflects a serious breach of ethical standards regarding equal treatment and respect for all staff members. This behavior can adversely affect not only Mrs. Dey’s career advancement opportunities but also cultivate a workplace environment that is not inclusive or supportive of diversity.