{"page":1,"pages":1,"per_page":"5000","total":5,"source":[{"id":"12","name":"Education Statistics","concept":[{"id":"Series","variable":[{"id":"LO.LLECE.MAT3.P50","metatype":[{"id":"IndicatorName","value":"LLECE: Distribution of 3rd Grade Mathematics Scores: 50th Percentile Score"},{"id":"Longdefinition","value":"The 50th percentile score is the score below which 50 percent of students scored. 1997 scores were calculated on a scale with a mean of 250 points and a standard deviation of 50 points. 2006 scores were calculated on a scale with a mean of 500 and a standard deviation of 100 points. 2006 scores are not comparable with 1997 scores. Data reflects country performance in the stated year according to LLECE reports. Consult the LLECE website for more detailed information: http://www.llece.org/"},{"id":"Shortdefinition","value":"The 50th percentile score is the score below which 50 percent of students scored. 1997 scores were calculated on a scale with a mean of 250 points and a standard deviation of 50 points. 2006 scores were calculated on a scale with a mean of 500 and a standard deviation of 100 points. 2006 scores are not comparable with 1997 scores. Data reflects country performance in the stated year according to LLECE reports. Consult the LLECE website for more detailed information: http://www.llece.org/"},{"id":"Source","value":"Latin American Laboratory for Assessment of the Quality of Education (LLECE)"},{"id":"Topic","value":"Learning Outcomes"}]}]}]}]}