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
79716
Downloads
15939
READ - P2009 Sleep Q6 (PR404Q06)
Data file: CBA_COG12_MAR31
Overview
Valid:
79172
Invalid:
192151
Type:
Discrete
Start:
154
End:
154
Width:
1
Range:
-
Format:
character
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1 | No credit | 32470 |
41%
|
| 2 | Full credit | 38106 |
48.1%
|
| 3 | No credit | 5364 |
6.8%
|
| 4 | No credit | 2229 |
2.8%
|
| r | Not reached | 1003 |
1.3%
|
| 7 | N/A | 190349 | |
| 8 | Invalid | 628 | |
| 9 | Missing | 1174 |
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.