Dr. Roussel conducts research to determine whether or not an after-school program improves school performance in fifth-grade children. Dr. Roussel is most likely engaged in .

Explain how the poverty level is determined. on edinuity* the possible answer may the poverty level is defined by the u. s. bureau of the census and it is determined by calculating the cost of providing an adequate diet. this number is then multiplied by three because research has indicated that poor people spend a third of their income on food.