Somente em inglês.The conflation of the distinct terms paradigms, theories, and models is an all-too-frequent source of confusion in the social sciences. The purpose of this brief note is to alert the reader to this confusing state of affairs in the social sciences, trace a few of the causes, and offer some tentative distinctions that may make our discourse a bit clearer. It should be acknowledged at the outset that there are genuine philosophical difficulties that are the subject of debate on the frontiers of contemporary philosophy of science; however, most social science discussions do not involve these debates —the confusions are fairly elementary, but remain unacknowledged. A bit of classic Wittgensteinian “linguistic therapy” is all that is needed for most purposes. And that is exactly what I intend to offer here. After clearing up an elementary difficulty regarding what counts as an almost “natural and intuitive” notion of theory and model in some circles, I will proceed to rigorously compare and contrast the concepts of theory and model, turning to the concept of paradigm later. The reason for this are the multiple meanings and implications of paradigm. In addition, previous work on theories and models will help making sense of paradigms later. Thus, the expository order will in fact follow a certain logical order.Seulement en anglais.Únicamente en inglés.