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

69083

Downloads

6052

Strategies - Ask if understood (ST38Q05)

Data file: INT_STQ09_DEC11

Overview

Valid: 498636

Invalid: 17322

Type: Discrete

Decimal: 0

Start: 221

End: 221

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Never or hardly ever	36285	7.3%
2	Some lessons	121303	24.3%
3	Most lessons	175325	35.2%
4	All Lessons	165723	33.2%
7	N/A	4018
8	Invalid	1182
9	Miss	12122

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.

Back to Catalog