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

69162

Downloads

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READ - P2009 Biscuits Q1 (R456Q01)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 157897

Invalid: 358061

Type: Discrete

Start: 172

End: 172

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	Full credit	147243	93.3%
2	No credit	2481	1.6%
3	No credit	1695	1.1%
4	No credit	1997	1.3%
8	Invalid	396	0.3%
9	Missing	1809	1.1%
r	Not reached	2276	1.4%
7	N/A	358061

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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