Programme for International Student Assessment 2012
Albania, United Arab Emirates, Argentina...and 57 more, 2012
Reference ID
WLD_2012_PISA_v01_M
Producer(s)
Organisation for Economic Co-operation and Development
Metadata
Created on
Sep 05, 2014
Last modified
Jun 14, 2022
Page views
67217
Downloads
17048
SCIE - P2006 Wild Oat Grass Q4 (PS408Q04T)
Data file: INT_COG12_DEC03
Overview
Valid:
117126
Invalid:
269603
Type:
Discrete
Start:
204
End:
204
Width:
1
Range:
-
Format:
character
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 0 | No credit | 3407 |
2.9%
|
| 1 | No credit | 17857 |
15.2%
|
| 2 | No credit | 38831 |
33.2%
|
| 3 | Full credit | 54743 |
46.7%
|
| r | Not reached | 2288 |
2%
|
| 7 | N/A | 268023 | |
| 8 | Invalid | 32 | |
| 9 | Missing | 1548 |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.