Trends in International Mathematics and Science Study, South Africa 2002
Grade 9

South Africa, 2002

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Reference ID

zaf-iea-tpisc-timss-g9-2002-v1

DOI

https://doi.org/10.25828/rnex-4873

Producer(s)

TIMSS & PIRLS International Study Center

Collections

TIMSS and PIRLS

Metadata

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Created on

May 11, 2026

Last modified

May 11, 2026

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gen\age of teacher (ltbgage)

Data file: timss-2002-sa-gr9-v1

Overview

Valid: 3475

Minimum: 1

Maximum: 97

Mean: 3.1876258992806

Standard deviation: 2.3942016356153

Type: Discrete

Width: 8

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	under 25	86	2.5%
2	25-29	477	13.7%
3	30-39	1977	56.9%
4	40-49	782	22.5%
5	50-59	125	3.6%
6	60 or older	25	0.7%
9	omitted	1	0%

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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