Reliabilty and Validity of DASS-21

Critique of the instrument (Dass-21)
Historical aspects of the development of DASS-21
Procedures involved in the generation of scores from the instrument.
published validity data
published reliability data
Potential sources of error that could contaminate the measurements
potential modifications to the instrument for Body image thoughts of teenage girls age 13-17 and impacts of social media on anxiety and depression and the
emphasis they place on it
Provide a code of best practice to be followed when using the DASS 21
the population that the instrument can be used with
procedures for generating scores from the instrument
Data collection considerations to enhance the validity and reliabilty
modifications to the instrument for use with different populations