The Programme for International Student Assessment, Electronic Reading Assessment 2009

World, 2009

Reference ID

WLD_2009_PISA-ERA_v01_M

Producer(s)

Organisation for Economic Co-operation and Development (OECD)

Metadata

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Created on

Sep 05, 2014

Last modified

Mar 29, 2019

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MATH - P2000 Population Pyramids (Q03) - original responses (M155Q03R)

Data file: ERA_COG09_TD_JUNE11

Overview

Valid: 32920

Invalid: 74474

Type: Discrete

Start: 251

End: 252

Width: 2

Format:

Questions and instructions

Categories

Value	Category
00	No credit
11	Partial credit
12	Partial credit
13	Partial credit
21	Full credit
22	Full credit
23	Full credit
99	Missing
97	N/A

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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