3 ms·

Why do you expect to see a difference between the two if the two groups come from the same population?

• ceejayoz 11y ago
  Because, as the article states, the experimental group will be given three years of significant income supplements, while the control will not. > In this study, we’ll recruit 1,000 low-income families across the country at the time of their children’s birth. Half of the families will receive a large monthly income supplement, and half will receive a nominal monthly income supplement. They’ll get these payments every month for the first three years of their children’s lives. In this way, we’ll be able to study the effect of poverty reduction on children’s cognitive, emotional and brain development, as well as the effect on family behaviors.
  • murbard2 11y ago
    I somehow missed that part, thanks for the clarification.