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

69656

Downloads

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READ - P2009 Chocolate and Health Q2 (R455Q02)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158972

Invalid: 356986

Type: Discrete

Start: 168

End: 168

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
0	No credit	88901	55.9%
1	Full credit	44378	27.9%
8		1	0%
9	Missing	17997	11.3%
r	Not reached	7695	4.8%
7	N/A	356986

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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