The causes of social anxiety disorder may be related to various factors such as genetics, neurobiochemistry, and psychosocial factors. However, there are currently no definitive diagnostic criteria and unified treatment methods. In order to help patients with social anxiety disorder and related individuals better understand their symptoms and severity, we have developed this simple and effective online psychological testing tool - the Social Anxiety Self Test Scale.

The PNAS scale, also known as the Positive and Negative Affect Schedule, is a psychological measurement tool used to assess the degree of positive and negative emotions an individual has experienced in the past month. Positive emotions include pleasant, energetic, and satisfying emotions such as excitement, pride, and inspiration; Negative emotions include unpleasant, painful, and frustrating emotions such as fear, guilt, and hostility.

The SAS Self Rating Anxiety Scale was developed by psychologist William W.K. Zung to measure the severity of an individual's anxiety state and its changes during treatment. It is widely used in the work of psychological counselors, psychologists, and psychiatrists to assess anxiety levels and monitor treatment outcomes. However, please note that this scale is not intended for diagnosing mental illnesses.

Welcome to participate in the Depression Self Assessment Test, which is an important step towards gaining a deeper understanding of one's own psychological state. Depression is a common and serious psychological disorder that not only affects an individual's emotions, but can also lead to sleep disorders, changes in appetite, decreased self-worth, and even suicidal thoughts. Understanding the symptoms and possible causes of depression is crucial for early identification and intervention.