Social class, wealth, culture and income have a very strong impact on what methods of child rearing are used by parents. Cultural values play a major role in how a parent raises their child. In psychology, the parental investment theory suggests that basic differences between males and females in parental investment have great adaptive significance and lead to gender differences in mating propensities and preferences. A family’s social class plays a large role in the opportunities and resources that will be made available to a child. Working-class children often grow up at a disadvantage with the schooling, communities, and parental attention made available to them compared to middle-class or upper-class upbringings. A parenting style is the overall emotional climate in the home.