According to the Professional Psychologists Practice Act, psychologists are allowed to:

The Professional Psychologists Practice Act explicitly grants psychologists the authority to diagnose and treat mental illnesses. This is a fundamental aspect of professional psychology, as the ability to accurately diagnose disorders is crucial for effective treatment. Licensees are trained extensively in various mental health issues, assessment methods, and therapeutic interventions, enabling them to fulfill their roles as mental health providers responsibly.

In addition, this legal framework also emphasizes the importance of adherence to ethical guidelines and standards of practice, which underpin the necessity for clear and definitive diagnostic capabilities. Such clarity ensures that psychologists can work competently and ethically within their professional boundaries, serving the best interests of their clients while also maintaining public trust in the profession.