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

36609

Downloads

4577

READ - P2009 Chocolate and Health Q4 (R455Q04)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158963

Invalid: 356995

Type: Discrete

Start: 170

End: 170

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	No credit	16501	10.4%
2	No credit	27319	17.2%
3	No credit	11545	7.3%
4	Full credit	87640	55.1%
8	Invalid	2305	1.5%
9	Missing	5070	3.2%
r	Not reached	8583	5.4%
7	N/A	356995

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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