The multi-dimensional model of Māori identity and cultural engagement (MMM-ICE) is a self-report (Likert-type) questionnaire designed to assess seven distinct dimensions of identity and cultural engagement in Māori populations: group-membership evaluation, socio-political consciousness, cultural efficacy and active identity engagement, spirituality, interdependent self-concept, authenticity of beliefs, and perceived appearance.
The MMM-ICE is a quantitative index of identity that can be readily compared across independent studies of the Māori people. The index was developed by Drs Carla Houkamau and Chris Sibley in 2010; both of whom are senior lecturers at The University of Auckland. The scale was updated in 2014 as the MMM-ICE2 to incorporate the seventh measure of perceived appearance. The MMM-ICE2 aims to provide a culturally sensitive, valid, and reliable measure of Māori identity: "who" a person is as Māori, how they "fit in" with others socially, and what that means in terms of behaviour. The MMM-ICE is associated with the New Zealand Attitudes and Values Study.
Group membership evaluation reflects the basic premise of social identity theory that individuals strive for favourable evaluations of their group. The more positively one's group is perceived, the greater the positive evaluations individuals can draw from when interpreting themselves. Having a negative sense of self as Māori has group members internalise the negative evaluations into their own self-concept. Since social identities are not only descriptive but also evaluative, the position of one's group within social hierarchy is viewed as central to the self-experience of individual members.