TY  - JOUR
PY  - 2011//
TI  - Aftershocks of Chile’s Earthquake for an Ongoing, Large-Scale Experimental Evaluation
JO  - Evaluation review
A1  - Barata, Clara
A1  - Leyva, Diana
A1  - Snow, Catherine
A1  - Del Río, Francisca
A1  - Godoy, Felipe
A1  - Reyes, Joaquín
A1  - Mendive, Susana
A1  - Yoshikawa, Hirokazu
A1  - Rolla, Andrea
A1  - Arbour, Marycatherine
A1  - Treviño, Ernesto
A1  - Moreno, Lorenzo
SP  - 103
EP  - 117
VL  - 35
IS  - 2
N2  - Evaluation designs for social programs are developed assuming minimal or no disruption from external shocks, such as natural disasters. This is because extremely rare shocks may not make it worthwhile to account for them in the design. Among extreme shocks is the 2010 Chile earthquake. Un Buen Comienzo (UBC), an ongoing early childhood program in Chile, was directly affected by the earthquake. This article discusses (a) the factors the UBC team considered for deciding whether to put on hold or continue implementation and data collection for this experimental study; and (b) how the team reached consensus on those decisions. A lesson learned is that the use of an experimental design for UBC insured that the evaluation’s internal validity was not compromised by the earthquake’s consequences, although cohort comparisons were compromised. Other lessons can be transferred to other contexts where external shocks affect an ongoing experimental or quasi-experimental impact evaluation.<p /> 
LA  - 
SN  - 0193-841X
UR  - http://dx.doi.org/10.1177/0193841X11400685
ID  - ref1
ER  -