The DASS-21 has shown good reliability and validity across various studies. It is widely used in both research and clinical practice for assessing symptoms of depression, anxiety, and stress.
The DASS-21 consists of 21 items, divided into three subscales: Depression (DASS-D), Anxiety (DASS-A), and Stress (DASS-S). Each subscale contains seven items that assess the frequency and severity of symptoms over the past week. Respondents rate each item on a 4-point Likert scale, ranging from 0 (did not apply to me at all) to 3 (applied to me very much, or most of the time). The subscales are scored by summing the ratings for each item within that subscale. DASS-393
The film's extended runtime of over three hours also contributed to its perceived value, as it was seen as offering more content than a standard 120-minute AV. The DASS-21 has shown good reliability and validity
The DASS-393 has several advantages, including: Each subscale contains seven items that assess the