Trends in International Mathematics and Science Study 2015

International, 2015

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Reference ID

int-iea-timss-2015-v1

Producer(s)

TIMSS & PIRLS International Study Center

Collections

TIMSS and PIRLS

Metadata

DDI/XML JSON

Created on

Mar 20, 2021

Last modified

Mar 20, 2021

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320922

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BTBG03 (BTBG03)

Data file: TIMSS-2015-pop2-bg-teacher-sci-allcountries-metadata

Overview

Valid: 925

Invalid: 75

Type: Discrete

Decimal: 0

loc_start_pos: 28

loc_end_pos: 28

Width: 1

Range: 1 - 6

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Under 25	29	3.1%
2	25â€“29	108	11.7%
3	30â€“39	271	29.3%
4	40â€“49	252	27.2%
5	50â€“59	214	23.1%
6	60 or more	51	5.5%
Sysmiss		75

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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