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    Home / Central Data Catalog / WLD_2012_PISA-CBA_V01_M / variable [F5]
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Programme for International Student Assessment, Computer-Based Assessment 2012

Albania, United Arab Emirates, Argentina...and 60 more, 2012
Reference ID
WLD_2012_PISA-CBA_v01_M
Producer(s)
Organisation for Economic Co-operation and Development
Metadata
Documentation in PDF DDI/XML JSON
Created on
Sep 05, 2014
Last modified
Jun 14, 2022
Page views
92806
Downloads
16460
  • Study Description
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  • Data files
  • CBA_COG12_MAR31
  • CBA_COG12_S_MAR31
  • CBA_PAQ12_MAR31
  • CBA_SCQ12_MAR31
  • CBA_STU12_MAR31

Difference in Effort (Deffort)

Data file: CBA_STU12_MAR31

Overview

Valid: 244634
Invalid: 26689
Type: Discrete
Start: 513
End: 514
Width: 2
Range: -
Format: character

Questions and instructions

Categories
Value Category Cases
-1 5352
2.2%
-2 2587
1.1%
-3 1214
0.5%
-4 666
0.3%
-5 366
0.1%
-6 192
0.1%
-7 119
0%
-8 67
0%
-9 164
0.1%
0 57724
23.6%
1 56555
23.1%
2 56416
23.1%
3 31188
12.7%
4 15558
6.4%
5 8436
3.4%
6 3381
1.4%
7 2095
0.9%
8 1160
0.5%
9 1394
0.6%
97 N/A 1626
98 Invalid 4434
99 Missing 20629
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.
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