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

36451

Downloads

4577

SCIE - P2003 Milk (Q03) (S326Q03)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 156612

Invalid: 359346

Type: Discrete

Start: 199

End: 199

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	No credit	11170	7.1%
2	Full credit	76349	48.8%
3	No credit	35320	22.6%
4	No credit	22953	14.7%
8	Invalid	557	0.4%
9	Missing	8052	5.1%
r	Not reached	2211	1.4%
7	N/A	359346

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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