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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420146

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3687

SCI\AMOUNT OF SCIENCE HOMEWORK (BTDSHWK)

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

Overview

Valid: 0

Invalid: 0

Type: Discrete

Decimal: 0

loc_start_pos: 661

loc_end_pos: 662

Width: 2

Range: 1 - 99

Format: Numeric

Questions and instructions

Categories

Value	Category
1	never
2	< once/wk, >30 mins
3	< once/wk, <30 mins
4	1-2/wk, >30 mins
5	1-2/wk, <30 mins
6	3 or more times/wk, >30 mins
7	3 or more times/wk, <30 mins
96	not appl
98	not admin
99	omitted

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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