Class-size reduction, for example, was evaluated rigorously in a state-wide randomized experiment in the US, and led to important knowledge about the potential payoff of this reform. Generalizing from research in other contexts is problematic, even if the research was well designed, so rigorous studies of education in Israel are needed to determine which programs are effective in this country.
This paper appears in the Center’s annual publication State of the Nation Report – Society, Economy and Policy 2011-2012.