When I close my eyes the world disappears. This causes me to believe that I am the only reality that I can be certain of. Given this, which of the following would I be judged to be engaged in?

Alma is interested in whether yoga increases subjective well-being. What research strategy should she use?

a. Descriptive b. Correlation c. Experimental d. Quasi-experimental

Which of the following types of prevention tends to be the most difficult because it involves large-scale societal changes?

A. quaternary B. tertiary C. primary D. secondary