(Olympia, WA)  --  Washington's Early Childhood Education and Assistance Program for low-income children appears to be leading to higher test scores in elementary school.  That's according to a study conducted by the Washington State Institute for Public Policy.  The report says higher test scores in math and reading result during elementary school for low-income kids who participate in the early-childhood education program, compared to kids from similar backgrounds who didn't participate.  Children are eligible for the program if their family income is at or below 110 percent of the federal poverty level.