Recognising signs of mental health issues is not always easy. The Patient Health Questionnaire (PHQ-9) and the Generalised Anxiety Disorder (GAD-7) are diagnostic tools for mental health problems used by health care professionals that is quick and easy for patients to complete. The GAD-7 is a brief scale for anxiety. The PHQ-9, a tool specific to depression. You can complete the forms for an initial screening free of charge below. Please note that the results of the tests are used for initial screening only and Psychologists cannot rely on them alone to diagnose a mental health problems.