PPIRLS 2001 technical reportPIRLS 2001 technical reportde Michael O. Martin, Ina V. S. MullisMateriasCross-cultural studiesStatisticsReading (Elementary)LiteracyEvaluationStudy and teaching (Elementary)ReadingProgress in International Reading Literacy StudyEdiciones (1)
PPIRLS 2006 user guide for the international databasePIRLS 2006 user guide for the international database
SScience achievement in Missouri and Oregon in an internationScience achievement in Missouri and Oregon in an international context, 1997 TIMSS benchmarking