Browsing by Author "Leyva, Diana"

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    Aftershocks of Chile's Earthquake for an Ongoing, Large-Scale Experimental Evaluation
    (SAGE PUBLICATIONS INC, 2011) Moreno, Lorenzo; Trevino, Ernesto; Yoshikawa, Hirokazu; Mendive, Susana; Reyes, Joaquin; Godoy, Felipe; Del Rio, Francisca; Snow, Catherine; Leyva, Diana; Barata, Clara; Arbour, MaryCatherine; Rolla, Andrea
    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.
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    Next Directions in Measurement of the Home Mathematics Environment: AnInternational and Interdisciplinary Perspective
    (2021) Byrd Hornburg, Caroline; Borriello, Giulia A.; Kung, Melody; Lin, Joyce; Litkowski, Ellen; Cosso, Jimena; Ellis, Alexa; King, Yemimah A.; Zippert, Erica; Cabrera, Natasha J.; Davis-Kean, Pamela; Sarah H. Eason; Hart, Sara A.; Iruka, Iheoma U.; LeFevre, Jo-Anne; Simms, Victoria; Susperreguy Jorquera, María Inés; Cahoon, Abbie; Chan, Winnie Wai Lan; Cheung, Sum Kwing; Coppola, Maria; De Smedt, Bert; Elliott, Leanne; Estévez-Pérez, Nancy; Gallagher-Mitchell, Thomas; Gardner-Neblett, Nicole; Gilmore, Camilla; Leyva, Diana; Maloney, Erin A.; Manolitsis, George; Melzi, Gigliana; Mutaf-Yıldız, Belde; Nelson, Gena; Niklas, Frank; Pan, Yuejuan; B. Ramani, Geetha; Skwarchuk, Sheri-Lynn; Sonnenschein, Susan; Purpura, David J.
    This paper synthesizes findings from an international virtual conference, funded by the National Science Foundation (NSF), focused on the home mathematics environment (HME). In light of inconsistencies and gaps in research investigating relations between the HME and children’s outcomes, the purpose of the conference was to discuss actionable steps and considerations for future work. The conference was composed of international researchers with a wide range of expertise and backgrounds. Presentations and discussions during the conference centered broadly on the need to better operationalize and measure the HME as a construct – focusing on issues related to child, family, and community factors, country and cultural factors, and the cognitive and affective characteristics of caregivers and children. Results of the conference and a subsequent writing workshop include a synthesis of core questions and key considerations for the field of research on the HME. Findings highlight the need for the field at large to use multi-method measurement approaches to capture nuances in the HME, and to do so with increased international and interdisciplinary collaboration, open science practices, and communication among scholars.