Programme for International Student Assessment 2012
Albania, United Arab Emirates, Argentina...and 57 more, 2012
Reference ID
WLD_2012_PISA_v01_M
Producer(s)
Organisation for Economic Co-operation and Development
Metadata
Created on
Sep 05, 2014
Last modified
Jun 14, 2022
Page views
103409
Downloads
24908
Familiarity with Maths Concepts - Quadratic Function (ST62Q03)
Data file: INT_STU12_DEC03
Overview
Valid:
306602
Invalid:
178888
Type:
Discrete
Decimal:
0
Start:
235
End:
235
Width:
1
Range:
1 - 5
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never heard of it | 49576 |
16.2%
|
| 2 | Heard of it once or twice | 39565 |
12.9%
|
| 3 | Heard of it a few times | 50499 |
16.5%
|
| 4 | Heard of it often | 67288 |
21.9%
|
| 5 | Know it well, understand the concept | 99674 |
32.5%
|
| 7 | N/A | 168330 | |
| 8 | Invalid | 1445 | |
| 9 | Missing | 9113 |
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.