This is a scale primarily made of an adult population but is widely used with adolescents in different countries with different languages. Literature support that it's been used with adolescents also.
Yes, Sanchita, I have seen a lot of samples used among adolescents, too.
Some recent examples:
McLoughlin, L. T. (2019). Understanding and measuring coping with cyberbullying in adolescents: exploratory factor analysis of the brief coping orientation to problems experienced inventory. Current Psychology, 1-11.
Muniandy, M., Richdale, A. L., Arnold, S. R., Trollor, J. N., & Lawson, L. P. (2021). Factor structure and psychometric properties of the Brief COPE in autistic older adolescents and adults. Research in Autism Spectrum Disorders, 84, 101764.
Of course yes!; in fact, there is a lot of bibliography about it that, without going any further, you can consult in "Google"; but, in addition, its correlation with the Frydenberg and Lewis -1993 Coping Scale for Adolescents (ACS or CSA) is quite high
