Her approach aims to identify women's 'different voice' in articulating moral choices. In her 1982 book, 'In a Different Voice', she studied boy's and girl's patterns of reasoning when asked about hypothetical examples of stealing. She found that boys tended to reason in terms of autonomy, individualised justice and rights (known as the 'ethics of justice' approach - the approach most commonly associated with the law's reasoning), and girls tended to focus on relationships and sustaining them (the 'ethics of care' approach). She argues that society values the masculine model (prioritising competing and conflicting 'rights') and undervalues the feminine model (which is contextual, narrative and focuses on relationships and responsibilities). Cultural feminists use Gilligan's work to argue that material changes should be made in the law to support women-valued relationships.