Programme for International Student Assessment, Computer-Based Assessment 2012
Albania, United Arab Emirates, Argentina...and 60 more, 2012
Reference ID
WLD_2012_PISA-CBA_v01_M
Producer(s)
Organisation for Economic Co-operation and Development
Metadata
Created on
Sep 05, 2014
Last modified
Jun 14, 2022
Page views
79428
Downloads
15939
READ - P2009 Sleep Q7 (PR404Q07T)
Data file: CBA_COG12_MAR31
Overview
Valid:
79931
Invalid:
191392
Type:
Discrete
Start:
155
End:
155
Width:
1
Range:
-
Format:
character
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 0 | No credit | 4631 |
5.8%
|
| 1 | No credit | 15256 |
19.1%
|
| 2 | No credit | 32646 |
40.8%
|
| 3 | Full credit | 26366 |
33%
|
| r | Not reached | 1032 |
1.3%
|
| 7 | N/A | 190349 | |
| 8 | Invalid | 24 | |
| 9 | Missing | 1019 |
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.