Does grade retention affect achievement? Some evidence from PISA - Garcia-Pérez, J. Ignacio (Universidad Pablo de Olavide) ; Hidalgo-Hidalgo, Marisa (Universidad Pablo de Olavide) ; Robles-Zurita, José Antonio (Universidad Pablo de Olavide) ; Xarxa de Referència en Economia Aplicada (XREAP)
  • Views: 35
  • Downloads: 6

DDD global statistics:

Year and monthly hits
Years Views Downloads
3 1
4 3
7 2
21 0
Download: 98106.csv
Country and domain hits
Countries Views Downloads
United States
26 0
2 2
3 1
1 1
1 1
1 1
United Kingdom
1 0
Download: 98106.csv
  • View is defined as a full DDD record access, or download when it is not done through the full record display.
  • Download is defined as the access to the file containing the full text of a document, image, audio or video. We add together the whole number of accesses when records hold more than one file.
  • Access hits from robots and administrative personnel are removed. A robot is defined as any computer that has accessed at least once a year the robots file or the oai server, or other that we have detected. Administrative computers are defined as those who have accessed maintenance pages.
  • GeoIP APIs are used to locate countries.