You work at a Non-Governmental Organization (NGO) that aims to reduce poverty. Your organization has conducted a randomized control trial (RCT) to evaluate the impact of an unconditional cash transfer program in Kenya. The results show that households receiving the transfer increased expenditures on education (e.g. school fees). Explain why the randomization of the transfers makes you confident in the results of the study. Given that the results of this study were positive, what would you say to someone who is skeptical about the impact of development aid?