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

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Created on

Sep 05, 2014

Last modified

Jun 14, 2022

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MATH - P2000 Population Pyramids (Q02) - original responses (M155Q02R)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158552

Invalid: 357406

Type: Discrete

Start: 249

End: 250

Width: 2

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
00	No credit	33271	21%
11	Partial credit	6718	4.2%
12	Partial credit	12566	7.9%
13	Partial credit	3265	2.1%
21	Full credit	66803	42.1%
99	Missing	35929	22.7%
97	N/A	357406

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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