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
36761
Downloads
4577
READ - P2009 Dust Mites Q8 - original responses (R435Q08R)
Data file: INT_COG09_TD_DEC11
Overview
Valid:
61129
Invalid:
454829
Type:
Discrete
Start:
318
End:
320
Width:
3
Range:
-
Format:
character
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 111 | 1290 |
2.1%
|
|
| 112 | 3692 |
6%
|
|
| 118 | 1 |
0%
|
|
| 119 | 28 |
0%
|
|
| 121 | 13129 |
21.5%
|
|
| 122 | 1893 |
3.1%
|
|
| 127 | 1 |
0%
|
|
| 128 | 1 |
0%
|
|
| 129 | 42 |
0.1%
|
|
| 171 | 1 |
0%
|
|
| 172 | 1 |
0%
|
|
| 181 | 5 |
0%
|
|
| 182 | 1 |
0%
|
|
| 191 | 20 |
0%
|
|
| 192 | 21 |
0%
|
|
| 199 | 123 |
0.2%
|
|
| 211 | 3169 |
5.2%
|
|
| 212 | 2260 |
3.7%
|
|
| 217 | 3 |
0%
|
|
| 218 | 3 |
0%
|
|
| 219 | 32 |
0.1%
|
|
| 221 | Full credit | 27517 |
45%
|
| 222 | 470 |
0.8%
|
|
| 228 | 2 |
0%
|
|
| 229 | 31 |
0.1%
|
|
| 281 | 8 |
0%
|
|
| 282 | 2 |
0%
|
|
| 288 | 1 |
0%
|
|
| 289 | 1 |
0%
|
|
| 291 | 28 |
0%
|
|
| 292 | 2 |
0%
|
|
| 298 | 1 |
0%
|
|
| 299 | 71 |
0.1%
|
|
| 721 | 1 |
0%
|
|
| 811 | 3 |
0%
|
|
| 812 | 4 |
0%
|
|
| 821 | 17 |
0%
|
|
| 822 | 1 |
0%
|
|
| 881 | 5 |
0%
|
|
| 888 | Invalid | 15 |
0%
|
| 898 | 6 |
0%
|
|
| 899 | 12 |
0%
|
|
| 911 | 14 |
0%
|
|
| 912 | 12 |
0%
|
|
| 919 | 77 |
0.1%
|
|
| 921 | 51 |
0.1%
|
|
| 929 | 71 |
0.1%
|
|
| 988 | 1 |
0%
|
|
| 989 | 19 |
0%
|
|
| 991 | 113 |
0.2%
|
|
| 992 | 28 |
0%
|
|
| 998 | 18 |
0%
|
|
| 999 | Missing | 6811 |
11.1%
|
| 777 | N/A | 454829 |
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.