Programme for International Student Assessment 2009
Albania, Argentina, Australia...and 70 more, 2009 - 2010
Reference ID
WLD_2009_PISA_v02_M
Producer(s)
Organisation for Economic Co-operation and Development (OECD)
Metadata
Created on
Sep 05, 2014
Last modified
Jun 14, 2022
Page views
56578
Downloads
5161
READ - P2009 Sleep Q7 - original responses (R404Q07R)
Data file: INT_COG09_TD_DEC11
Overview
Valid:
158156
Invalid:
357802
Type:
Discrete
Start:
301
End:
303
Width:
3
Range:
-
Format:
character
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 111 | 5998 |
3.8%
|
|
| 112 | 5116 |
3.2%
|
|
| 118 | 4 |
0%
|
|
| 119 | 79 |
0%
|
|
| 121 | 52795 |
33.4%
|
|
| 122 | Full credit | 38216 |
24.2%
|
| 128 | 18 |
0%
|
|
| 129 | 189 |
0.1%
|
|
| 172 | 1 |
0%
|
|
| 177 | 1 |
0%
|
|
| 181 | 22 |
0%
|
|
| 182 | 7 |
0%
|
|
| 188 | 5 |
0%
|
|
| 189 | 1 |
0%
|
|
| 191 | 81 |
0.1%
|
|
| 192 | 31 |
0%
|
|
| 198 | 1 |
0%
|
|
| 199 | 295 |
0.2%
|
|
| 211 | 11179 |
7.1%
|
|
| 212 | 3420 |
2.2%
|
|
| 218 | 3 |
0%
|
|
| 219 | 89 |
0.1%
|
|
| 221 | 25892 |
16.4%
|
|
| 222 | 5436 |
3.4%
|
|
| 228 | 2 |
0%
|
|
| 229 | 69 |
0%
|
|
| 272 | 1 |
0%
|
|
| 281 | 12 |
0%
|
|
| 282 | 4 |
0%
|
|
| 288 | 1 |
0%
|
|
| 291 | 73 |
0%
|
|
| 292 | 2 |
0%
|
|
| 299 | 114 |
0.1%
|
|
| 721 | 3 |
0%
|
|
| 722 | 1 |
0%
|
|
| 811 | 13 |
0%
|
|
| 812 | 9 |
0%
|
|
| 818 | 1 |
0%
|
|
| 819 | 3 |
0%
|
|
| 821 | 41 |
0%
|
|
| 822 | 9 |
0%
|
|
| 828 | 1 |
0%
|
|
| 881 | 1 |
0%
|
|
| 888 | Invalid | 25 |
0%
|
| 889 | 2 |
0%
|
|
| 891 | 3 |
0%
|
|
| 899 | 5 |
0%
|
|
| 911 | 24 |
0%
|
|
| 912 | 14 |
0%
|
|
| 919 | 104 |
0.1%
|
|
| 921 | 43 |
0%
|
|
| 922 | 13 |
0%
|
|
| 929 | 23 |
0%
|
|
| 981 | 1 |
0%
|
|
| 989 | 4 |
0%
|
|
| 991 | 235 |
0.1%
|
|
| 992 | 8 |
0%
|
|
| 998 | 5 |
0%
|
|
| 999 | Missing | 8408 |
5.3%
|
| 777 | N/A | 357802 |
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.