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

Documentation in PDF DDI/XML JSON

Study website

Created on

Sep 05, 2014

Last modified

Jun 14, 2022

Page views

37881

Downloads

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MATH - P2003 Tossing Coins (Q01) (M423Q01)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158469

Invalid: 357489

Type: Discrete

Start: 39

End: 39

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	Full credit	114467	72.2%
2	No credit	12879	8.1%
3	No credit	20346	12.8%
4	No credit	5372	3.4%
8	Invalid	675	0.4%
9	Missing	2376	1.5%
r	Not reached	2354	1.5%
7	N/A	357489

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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