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
36513
Downloads
4577
READ - P2009 Acne Vulgaris Q1 - original responses (R447Q01R)
Data file: INT_COG09_TD_DEC11
Overview
Valid:
97477
Invalid:
418481
Type:
Discrete
Start:
321
End:
323
Width:
3
Range:
-
Format:
character
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 111 | 17707 |
18.2%
|
|
| 112 | 3087 |
3.2%
|
|
| 118 | 8 |
0%
|
|
| 119 | 44 |
0%
|
|
| 121 | Full credit | 60909 |
62.5%
|
| 122 | 2200 |
2.3%
|
|
| 128 | 8 |
0%
|
|
| 129 | 36 |
0%
|
|
| 181 | 19 |
0%
|
|
| 182 | 1 |
0%
|
|
| 189 | 1 |
0%
|
|
| 191 | 111 |
0.1%
|
|
| 192 | 19 |
0%
|
|
| 199 | 52 |
0.1%
|
|
| 211 | 5885 |
6%
|
|
| 212 | 2137 |
2.2%
|
|
| 218 | 6 |
0%
|
|
| 219 | 11 |
0%
|
|
| 221 | 1966 |
2%
|
|
| 222 | 1370 |
1.4%
|
|
| 228 | 3 |
0%
|
|
| 229 | 8 |
0%
|
|
| 282 | 1 |
0%
|
|
| 291 | 9 |
0%
|
|
| 292 | 14 |
0%
|
|
| 299 | 18 |
0%
|
|
| 711 | 1 |
0%
|
|
| 811 | 12 |
0%
|
|
| 812 | 1 |
0%
|
|
| 821 | 5 |
0%
|
|
| 822 | 2 |
0%
|
|
| 881 | 1 |
0%
|
|
| 888 | Invalid | 15 |
0%
|
| 891 | 3 |
0%
|
|
| 911 | 47 |
0%
|
|
| 912 | 5 |
0%
|
|
| 919 | 35 |
0%
|
|
| 921 | 12 |
0%
|
|
| 922 | 17 |
0%
|
|
| 929 | 7 |
0%
|
|
| 991 | 36 |
0%
|
|
| 992 | 7 |
0%
|
|
| 998 | 1 |
0%
|
|
| 999 | Missing | 1640 |
1.7%
|
| 777 | N/A | 418481 |
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.