The Inter-American Development Bank and the Music Foundation Simon Bolivar (Bolivar FUNDAMUSICAL) launched the first experimental impact assessment of the effects of the program. The toolkit was applied all around Venezuela to approximately 3,000 children ages 6-14 in children’s homes using laptops by trained interviewees under the supervision of a data firm. For the majority of instruments the interviewer orally presented the questions and reported the responses in the Toolkit. Only for specific instruments (task-based measures) did children interact directly with the computer. The interviewers received extra training to interview young children at their respective homes from the expert psychologist on the evaluation team. The manual also provided explicit instructions about the physical location and behavior of the children, interviewer and parents during the testing. Data was collected on children’s cognitive and socio-emotional capacities.