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

DDI/XML JSON

Created on

Sep 05, 2014

Last modified

Mar 29, 2019

Page views

26652

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How many books at home (ST22Q01)

Data file: ERA_STQ09_JUNE11

Overview

Valid: 105528

Invalid: 1866

Type: Discrete

Decimal: 0

Start: 113

End: 113

Width: 1

Range: -

Format:

Questions and instructions

Categories

Value	Category
1	0-10 books
2	11-25 books
3	26-100 books
4	101-200 books
5	201-500 books
6	More than 500 books
7	N/A
8	Invalid
9	Miss

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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