Symptom Checklist-90 (SCL-90)

The SCL-90 scale was first developed by L. R. Derogatis in 1954. It was revised in 1975 by the same author. SCL-90 is the most widely used psychological disease examination scale at present. It ranges from feeling, emotion, thinking, consciousness, and behavior to living habits, interpersonal relationships, diet, and sleep. It includes 9 subscales with 90 items, which are divided into 10 categories, namely 10 factors: somatization (reflecting subjective physical maladaptation), obsessive-compulsive symptoms, interpersonal sensitivity, depression, anxiety, hostility, paranoia, psychosis, and additional factors (reflecting sleep and appetite). Scoring criteria: a five-grade scoring system (from 1 to 5) was adopted ranging from none to serious. The score of each of the 90 items is added to obtain the total score. Total average score = total score / 90. Factor score = the total score of each item constituting a factor / the number of items constituting a factor. The score range is 1–5, the lowest is 1, and the highest is 5. The higher the score, the more obvious the symptoms [6] and the poorer the mental health. Internal consistency reliability (Cronbach’s coefficient) and split-half reliability were used to identify the homogeneity reliability of the scale. The Cronbach’s coefficient and split-half reliability of each scale were above 0.80.

SCL90 is one of the most famous mental health test scales in the world. It is the most widely used outpatient mental disorders and mental illness examination scale. SCL90 helps people to understand their mental health in 10 points. The Self-reporting Inventory, also known as the 90-item Symptom Inventory (SCL-90) or Hopkin’s Symptom Inventory (HSCL) was first developed by L. R. Derogatis in 1954. The revised version was developed in 1975 by the same author.