I wonder how much early swim lessons are a proxy for parental conscientiousness, awareness of drowning as a risk, and income. The study considered controlling for income and then decided to instead control for “less than high school education vs more than high school education” on the part of the relative answering the questions. :(
I wonder how much early swim lessons are a proxy for parental conscientiousness, awareness of drowning as a risk, and income. The study considered controlling for income and then decided to instead control for “less than high school education vs more than high school education” on the part of the relative answering the questions. :(