The DASS is a self-report questionnaire developed by Syd Lovibond and Peter Lovibond in 1995. The original DASS consists of 42 items, divided into three subscales:

The unique combination of biological activities exhibited by DASS-167 makes it a promising compound for various applications, including:

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The DASS-167 was first introduced in 1995 by Antony, Bieling, Pisveazadeh, Brown, Navesen, and Cox as a refinement of the original DASS-21 scale. The developers aimed to create a more comprehensive and sensitive measure of negative emotional states, which could capture the complexities of mental health experiences. The DASS-167 consists of 167 items, making it a more extensive assessment tool compared to its predecessors.