Programme for International Student Assessment 2006

Argentina, Australia, Austria...and 54 more, 2006

Reference ID

WLD_2006_PISA_v01_M

Producer(s)

Organisation for Economic Co-operation and Development (OECD)

Metadata

Documentation in PDF DDI/XML JSON

Study website

Created on

Nov 23, 2011

Last modified

Jun 14, 2022

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SCIE - P2006 Bacteria in Milk (Q05) (S428Q05)

Data file: INT_Cogn06_T_Dec07

Overview

Valid: 398750

Invalid: 0

Type: Discrete

Start: 145

End: 145

Width: 1

Range: -

Format: character

Questions and instructions

Categories

Value	Category	Cases
0	No credit	47693	12%
1	Full credit	47234	11.8%
7	N/A	275794	69.2%
9	Missing	25956	6.5%
r	Not reached	2073	0.5%

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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