Trends in International Mathematics and Science Study 1999

International, 1999

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Reference ID

int-iea-timss-1999-v1.1

Producer(s)

TIMSS International Study Center

Collections

TIMSS and PIRLS

Metadata

Documentation in PDF DDI/XML JSON

Created on

May 08, 2012

Last modified

May 24, 2020

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492029

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GEN\INTERNET\WWW SCIENCE PROJECTS (BSBGOFT4)

Data file: TIMSS 1999 - Population 2 - Student Bg - All Countries v1

Overview

Valid: 0

Invalid: 0

Type: Discrete

Decimal: 0

loc_start_pos: 306

loc_end_pos: 307

Width: 2

Range: 0 - 9

Format: Numeric

Questions and instructions

Categories

Value	Category
1	at least once a week
2	at least once a month
3	a few times a year
4	never
6	not appl.
8	not admin.
9	omitted
11	.B

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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