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

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Documentation in PDF DDI/XML JSON

Created on

May 08, 2012

Last modified

May 24, 2020

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394306

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GEN\AGE OF TEACHER (BTBGAGE)

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

Overview

Valid: 0

Invalid: 0

Type: Discrete

Decimal: 0

Width: 2

Range: 1 - 9

Format: Numeric

Questions and instructions

Categories

Value	Category
1	under 25
2	25-29
3	30-39
4	40-49
5	50-59
6	60 or more
8	not admin.
9	omitted
11	.A

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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