Identifying "types" of ideologies and intergroup biases: Advancing a person-centred approach to social psychology

Whether it be those who are high on right-wing authoritarianism (RWA) and social dominance orientation (SDO), or a mixture of low on explicit, but high on implicit, bias, many social psychological theories predict the existence of distinct types of people. These assumptions are, however, untestable using variable-centred analyses. Accordingly, we argue that the time has come to utilise person-centred analyses that enable us to test these key assumptions. We open by demonstrating how to implement - and interpret - latent profile analysis (a type of person-centred analysis), using RWA and SDO as an example. We then discuss the debate over the dimensionality of political ideology to highlight the need for person-centred analyses. Next, we review person-centred approaches to political ideology and highlight recent work using person-centred analyses to assess key assumptions of ambivalent sexism and relative deprivation. We conclude by discussing limitations to person-centred approaches and by providing suggestions for future research.