The aim of the EFFORT project is to measure cognitive effort in children and understand how it relates to their socioeconomic background. To carry this out, a large sample of school children conducted different real-effort tasks in Universidad Carlos III de Madrid. This new methodology will produce the first reliable evidence of socioeconomic differences in effort. The findings will provide valuable insights for educational practitioners and help design policies aimed at improving equality of opportunity.
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Effort Project. Child experimental data and associated survey dataEmbargoed
Jun 2, 2026
Radl, Jonas, 2022, "Effort Project. Child experimental data and associated survey data", https://doi.org/10.21950/DEDRIZ, e-cienciaDatos, V8
Child experimental data and associated survey data: The dataset contains socioeconomic data and experimental measures of cognitive effort stemming from fifth-grade students and their parents. Among the socioeconomic variables that can be found in the dataset are the gender, age, and country of birth of both parents and students. Furthermore, the le...
Effort Project. Child experimental data and associated survey data (multiple-imputed data, m = 10), used in Radl, Requena & Swarr (2026)Embargoed
Jun 2, 2026
Radl, Jonas, 2027, "Effort Project. Child experimental data and associated survey data (multiple-imputed data, m = 10), used in Radl, Requena & Swarr (2026)", https://doi.org/10.21950/GVHOBW, e-cienciaDatos, V1
Child experimental data and associated survey data (multiple-imputed data, m = 10), used in Radl, Requena & Swarr (2026): An R list of ten dataframes that contain imputed values for the principal explanatory variables of the analysis conducted for Radl, Requena & Swarr (2026). Missing data exist for some students because surveys were occasionally r...
Effort Project. Child experimental data and associated survey data (multiple-imputed data, m = 10), used in Radl et al. (2026)Embargoed
Jun 2, 2026
Radl, Jonas, 2027, "Effort Project. Child experimental data and associated survey data (multiple-imputed data, m = 10), used in Radl et al. (2026)", https://doi.org/10.21950/HJZKQG, e-cienciaDatos, V3
Child experimental data and associated survey data (multiple-imputed data, m = 10): An R list of ten dataframes that contain imputed values for the principal explanatory variables of the analysis conducted for Radl et al. (2025). Missing data exist for some students because surveys were occasionally returned incomplete or illegible. Multiple imputa...
Effort Project. Parent experimental data and associated survey dataEmbargoed
Jun 2, 2026
Radl, Jonas, 2027, "Effort Project. Parent experimental data and associated survey data", https://doi.org/10.21950/68CTB1, e-cienciaDatos, V3
The dataset contains socioeconomic data and experimental measures of cognitive effort stemming from parents of a subset of the fifth-grade students who participated in the laboratory experiments. Effort-related non-cognitive (personality) variables that were collected for children were also collected for the parents, including Locus of Control, the...
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