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

36426

Downloads

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MATH - P2003 Telephone Rates (Q01) (M559Q01)

Data file: INT_COG09_TD_DEC11

Overview

Valid: 158138

Invalid: 357820

Type: Discrete

Start: 49

End: 49

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
1	No credit	28399	18%
2	No credit	12946	8.2%
3	No credit	17216	10.9%
4	Full credit	88460	55.9%
8	Invalid	2284	1.4%
9	Missing	4488	2.8%
r	Not reached	4345	2.7%
7	N/A	357820

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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