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

69222

Downloads

6052

SCIE - P2006 Experimental Digestion (Q03) (S498Q03)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158107

Invalid: 357851

Type: Discrete

Start: 231

End: 231

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	Full credit	56655	35.8%
2	No credit	28295	17.9%
3	No credit	34390	21.8%
4	No credit	23426	14.8%
8	Invalid	2064	1.3%
9	Missing	7971	5%
r	Not reached	5306	3.4%
7	N/A	357851

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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