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

69616

Downloads

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READ - P2009 Brushing your teeth Q2 (R403Q02)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 61185

Invalid: 454773

Type: Discrete

Start: 98

End: 98

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	No credit	7291	11.9%
2	No credit	1147	1.9%
3	Full credit	43026	70.3%
4	No credit	4098	6.7%
8	Invalid	735	1.2%
9	Missing	1000	1.6%
r	Not reached	3888	6.4%
7	N/A	454773

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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