Formulate a hypotheses and$/$ or research objectives for the following :

Article$1$: how do postgraduate students understand and make sense of research eyhics in their own terms?

Article$2$: How do loyalty programs mediate the relationship between south African youth's values and their repeat purchase behaviour?

Article $3$: what are the subjectives experience and perceptions of university students in south africa regarding the relationship between their media use and political engagement?