What kind of sample method did the researchers use and what were the findings?

Article to use: Fekete, E. M., Williams, S. L., & Skinta, M. D. (2017). Internalised HIV-stigma, loneliness, depressive symptoms and sleep quality in people living with HIV. Psychology & Health, 1-18.

Listed the research fields that were going to be investigated but would you discuss them and the ethical dilemma’s faced by the researchers? What kind of sample method did the researchers use and what were the findings?

150 words and 1 reference (see above) must have in text citations!