They identified different types of child training practices for kids from around 5 years old until adolescence. Their categories were based on the values and characteristics that were the focus of child training. they measured a range of areas related to child training, including obedience, responsibility, self-reliance, achievement and independence. In other words, they wanted to know if there was a relationship between a culture's primary economic system (pastoral, fishing, etc.,) and how they raised their children.