A 2014 study (http://www. futurity.org/foreign-languages-make-us-less-moral/) examined the relationship between using a foreign language and acting for the common good. They examined two groups of people, one that used their native language and one that used a foreign language. Each group was presented with a moral dilemma that required the subject to make a choice about saving himself or herself versus sacrificing his or her life for the sake of saving others. Those using a foreign language chose saving others at a higher rate than those using their native language.
a. Identify the response variable and the explanatory variable.
b. Is this study an observational study or an experiment? Explain.
c. Can we conclude that speaking a foreign language causes one to act morally? Explain.