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
101254
Downloads
24177
Familiarity with Maths Concepts - Radicals (ST62Q10)
Data file: INT_STU12_DEC03
Overview
Valid:
306316
Invalid:
179174
Type:
Discrete
Decimal:
0
Start:
241
End:
241
Width:
1
Range:
1 - 5
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never heard of it | 39823 |
13%
|
| 2 | Heard of it once or twice | 33544 |
11%
|
| 3 | Heard of it a few times | 40264 |
13.1%
|
| 4 | Heard of it often | 63378 |
20.7%
|
| 5 | Know it well, understand the concept | 129307 |
42.2%
|
| 7 | N/A | 168327 | |
| 8 | Invalid | 1540 | |
| 9 | Missing | 9307 |
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.