Reference,Figure 4.1
Title,No internationally comparable data on learning are available for most children outside of high-income countries
Subtitle,"Percentage of children in countries that have reported mathematics and reading scores since 2000 for ASER, EGRA, LLECE, PASEC, PIRLS, PISA, SACMEQ, and TIMSS"
Source,"WDR 2018 team, using data from Sandefur (2017)."
Note,ASER = Annual Status of Education Report; EGRA = Early Grade Reading Assessment; LLECE = Latin American Laboratory for Assessment of the Quality of Education; PASEC = Programme d’Analyse des Systèmes Educatifs de la Confemen; PIRLS = Progress in International Reading Literacy Study; PISA = Programme for International Student Assessment; SACMEQ =  Southern and Eastern Africa Consortium for Monitoring Educational Quality; TIMSS = Trends in International Mathematics and Science Study.
Report URL,http://www.worldbank.org/wdr2018
Data URL,http://bit.do/WDR2018-Fig_4-1
,
grade,category,t1,t2,t3,t4,
Grade level,Country category,International: PIRLS PISA TIMSS,Standardized regional: LLECE PASEC SACMEQ,Non-standardized regional: ASER EGRA,None,
Grades 2-3,High income,0,8.782315340705811,0,91.21768465929418,
Grades 2-3,Middle income,44.3524221126239,11.96628376859101,0,43.68129411878513,
Grades 2-3,Low income,38.62013759171089,15.53995387988704,0,45.83990852840208,
Grades 2-3,World,36.58185171760904,11.89471591932628,0,51.52343236306456,
Grades 4-6,High income,.0727233606868564,.9042937983002994,81.99570110234758,17.02728173866527,
Grades 4-6,Middle income,0,12.41035880113954,14.90681903004271,72.68282216881778,
Grades 4-6,Low income,1.96654023627771,39.65735670043563,0,58.37610306328668,
Grades 4-6,World,.2515484752897176,13.90057782342677,23.78392208760745,62.06395161367596,
Grades 8-10,High income,0,0,85.78896753095854,14.21103246904147,
Grades 8-10,Middle income,0,0,27.66730268091767,72.33269731908237,
Grades 8-10,Low income,0,0,0,100,
Grades 8-10,World,0,0,33.55774416203319,66.44225583796667,