Usually, empirical studies are built on theoretical backgrounds. When I am writing on a specific subject and would like to cite an empirical study which has been done on this subject and discuss its results. Can I simply cite the study and discuss its findings WITHOUT citing the studies which formed the theoretical background of the empirical act?
For example, assume that study X measures the impact of social media use on teens. X states that, before empirically testing the effects, 'we relied on study 1, 2, 3, 4 and 5 to form our 10 statements' (effects). 'Findings revealed that the top 3 effects were effect A, B and C'.
When discussing the results, can I simply say that the study X found that the top 3 effects of social media are A, B and C (X 2010, p. 20). Am I obligated to add that the effect A was drawn from study 1, effect B from study 2, etc... you get the idea.