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

Page views

262615

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BTBS21B (BTBS21B)

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

Overview

Valid: 835

Invalid: 165

Type: Discrete

Decimal: 0

loc_start_pos: 171

loc_end_pos: 171

Width: 1

Range: 1 - 5

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	15 minutes or less	231	27.7%
2	16â€“30 minutes	455	54.5%
3	31â€“60 minutes	134	16%
4	61â€“90 minutes	15	1.8%
5	More than 90 minutes	0	0%
Sysmiss		165

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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