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

311506

Downloads

2537

BSBC38BD (BSBC38BD)

Data file: TIMSS-2015-pop2-bg-stu-allcountries-metadata

Overview

Valid: 168

Invalid: 832

Type: Discrete

Decimal: 0

loc_start_pos: 287

loc_end_pos: 287

Width: 1

Range: 1 - 6

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	No chemistry homework	14	8.3%
2	1â€“15 minutes	50	29.8%
3	16â€“30 minutes	45	26.8%
4	31â€“60 minutes	41	24.4%
5	61â€“90 minutes	14	8.3%
6	More than 90 minutes	4	2.4%
Sysmiss		832

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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