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

36570

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MATH - P2000 Population Pyramids (Q04) (M155Q04T)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158499

Invalid: 357459

Type: Discrete

Start: 30

End: 30

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
0	No credit	690	0.4%
1	No credit	8575	5.4%
2	No credit	18485	11.7%
3	No credit	44877	28.3%
4	Full credit	72603	45.8%
8	Invalid	47	0%
9	Missing	10132	6.4%
r	Not reached	3090	1.9%
7	N/A	357459

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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