| Evaluación | Efecto | Edad promedio | Observaciones | Evaluación experimental | País | Intervención |
|---|---|---|---|---|---|---|
| Borkum 2012 | -5 | Grado 4 | 20,858 | Si | India | Las escuelas recibieron bibliotecas con libros codificados por nivel de dificultad |
| Sabarwal 2014 | -6 | Grado 4 | 14,774 | Si | Sierra Leona | Los alumnos recibieron 4 libros de texto para las asignaturas principales |
| Allington 2010 | 14 | Grado 2 | 1,330 | Si | Estados Unidos | Los alumnos recibieron 12 libros, elegidos por ellos, para leer durante el verano |
| Kim 2005 | 1 | Grado 4 | 468 | Si | Estados Unidos | 8 libros fueron enviados por correo a los alumnos para leer durante las vacaciones de verano |
Graph of Effects
This graph shows the effects of [Number of Evaluations] evaluations of [Program Type] programs. The first evaluation, [Evaluation name 1], estimated an effect of [Estimated effect Eval. 1] points (graphed with the top grey circle). Because this is an estimate, there is uncertainty about what the true effect is. But we know that the true effect will probably lie between a low value of [True effect lie between – Low value, Eval. 1] and a high value of [True effect lie between – High value, Eval. 1] (graphed with the top horizontal line). We can combine the estimates from all the evaluations and compute an average effect of [Estimated effect, Average] (graphed with the black circle). There is also uncertainty about where the true average effect is. But we know that the true average effect probably lies between [True effect lie between – Low value, Average] and [True effect lie between – High value, Average] points (graphed with the bottom horizontal line).
| Evaluación | Efectos | Valor Mínimo | Valor Máximo | Peso en el efecto promedio (%) |
|---|---|---|---|---|
| Allington 2010 | 14 | 4 | 23 | 22 |
| Borkum 2012 | -5 | -13 | 3 | 25 |
| Kim 2005 | 1 | -6 | 7 | 29 |
| Sabarwal 2014 | -6 | -14 | 3 | 23 |
| Overall |