John Berry's acculturation model describes the strategies people use when they live between two cultures. From two questions — do you maintain your heritage culture, and do you take part in the wider society? — it maps four strategies: integration (keep both), assimilation (take up the new), separation (hold to heritage), and marginalisation (at home in neither). Developed in cross-cultural psychology from the 1980s and most cited in Berry's 1997 synthesis, it sorts people by stance rather than ranking cultures or scoring how 'adapted' anyone is.
John Berry's acculturation model (1997) is a validated framework in cross-cultural psychology. For people living between two cultures, it identifies four strategies from two questions: do you maintain your heritage culture, and do you take part in the wider society? (Berry's acculturation model)