Translation and Initial Validation of the Depression Anxiety and Stress Scale (DASS-21) in Ilokano.

The Depression Anxiety and Stress Scale (DASS-21) is a self-report screening tool of psychological symptoms used in many countries and translated in different languages. The DASS-21 was translated into Ilokano, one of the major languages in the Philippines spoken by over 9 million people all over the world. The translation process involved independent translations by multilingual clinical psychologists, reviews by two multilingual mental health professionals, and pilot testing. The translation was then validated in a study with 668 Ilokano speakers mainly from three regions of the Philippines where Ilokano was a native language or a lingua franca. A confirmatory factor analysis indicated a good fit of the three-factor model compared to a one-factor model. The three subscales showed good internal consistency were also positively correlated with other measures of depression, anxiety, and negative affect, and negatively correlated with measures of positive affect and flourishing. Using a stringent test of criterion validity, the results also show that DASS-Depression was more strongly correlated with a criterion measure of depression, compared to with measures of anxiety and negative affect, and that DASS-Anxiety was more strongly correlated with a criterion measure of anxiety compare to a measure of negative affect. The results provide good initial evidence for the validity and viability of the DASS-21 in Ilokano, which should be a useful tool in mental health programs in parts of the Philippine community, particularly in identifying individuals who may need attention of mental health professionals.