Over the past few years, a local vape shopkeeper notices that a lot of his customers tend to be Health Sciences students, and he hardly sees students from any other program. He is curious and comes to you for help trying to understand if Health Sciences students vape more than students in other programs. Using only University students, how would you design a study to test this hypothesis? a) What study design would you choose? b) How would you define the "exposed" and "unexposed" groups? c) How would you measure exposure? d) How would you define the "outcome" and "free of outcome" groups? e) How would you measure the outcome? f) Would you recruit participants based on exposure or outcome status? Justify this choice considering the study design you are proposing. g) What measure of association would you use in this study? If you calculate the measure of to be 0.8, interpret the meaning of this number. Does it support the hypothesis that health sciences students vape more often than students in other programs, and if so, why? If not, what are some reasons why this measure does not reflect the shopkeeper's observations?

Over the past few years, a local vape shopkeeper notices that a lot of his customers tend to be Health Sciences students, and he hardly sees students from any other program. He is curious and comes to you for help trying to understand if Health Sciences students vape more than students in other programs. Using only University students, how would you design a study to test this hypothesis? a) What study design would you choose? b) How would you define the "exposed" and "unexposed" groups? c) How would you measure exposure? d) How would you define the "outcome" and "free of outcome" groups? e) How would you measure the outcome? f) Would you recruit participants based on exposure or outcome status? Justify this choice considering the study design you are proposing. g) What measure of association would you use in this study? If you calculate the measure of to be 0.8, interpret the meaning of this number. Does it support the hypothesis that health sciences students vape more often than students in other programs, and if so, why? If not, what are some reasons why this measure does not reflect the shopkeeper's observations?