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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245294

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2173

MAT\ HOURS (ATBM10)

Data file: timss-2015-pop1-bg-teacher-allcountries-metadata

Overview

Valid: 689

Invalid: 311

Type: Discrete

Decimal: 0

loc_start_pos: 175

loc_end_pos: 175

Width: 1

Range: 1 - 5

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	None	187	27.1%
2	Less than 6 hours	174	25.3%
3	6â€“15 hours	162	23.5%
4	16â€“35 hours	90	13.1%
5	More than 35 hours	76	11%
Sysmiss		311

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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