Media placement Politechs' unique opinion model, developed by PRiMeR, provides an effective approach to message positioning and placement. PRiMeR collects attitudinal data, along with data about the media use of respondents, in the same survey questionnaire. Media data are then mapped, using the opinion model. This allows Politechs and PRiMeR to match opinion groups with information sources. As a result, your messages are comprehensively targeted or designed to appeal to specific opinion groups, and then placed or delivered through the medium to which those groups are most likely to turn for information.