Abstract
“Evidence-based Development Aid Evaluation” is a hot topic in the aid evaluation field and this movement has been led by Poverty Action Lab (J-PAL) since it's establishment. By reviewing the history, three origins can be identified about this movement. The first is the evaluation study which root is deeply embedded the Campbell and Stanley's proposal; the second one is the aid evaluation which has been uniquely developed due to the unique characteristics of the field; and the third one is relatively newcomer which is development economics field. After discussing each origin, the thoughts of Scriven, program director of the Evaluation Center, Western Michigan University (-2008), and Banerjee, director of J-PAL, are examined about advantages and constrains of randomized experimental design. One conclusion is: there are some rooms for employing RCT even though it cannot be dominant. It should be considered to put some more resources on the aid activities which effectiveness is verified by this approach.
