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

62166

Downloads

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SCIE - P2006 Wild Oat Grass (Q05) (S408Q05)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158137

Invalid: 357821

Type: Discrete

Start: 204

End: 204

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	No credit	59028	37.3%
2	No credit	15894	10.1%
3	No credit	13279	8.4%
4	Full credit	58391	36.9%
8	Invalid	3851	2.4%
9	Missing	3974	2.5%
r	Not reached	3720	2.4%
7	N/A	357821

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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