Trends in International Mathematics and Science Study 2015

International, 2015

Get Microdata

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

380787

Downloads

2763

MAT\HOMEWORK\DISCUSS HOMEWORK (ATBM07CB)

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

Overview

Valid: 640

Invalid: 360

Type: Discrete

Decimal: 0

loc_start_pos: 163

loc_end_pos: 163

Width: 1

Range: 1 - 3

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Always or almost always	410	64.1%
2	Sometimes	210	32.8%
3	Never or almost never	20	3.1%
Sysmiss		360

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.

Back to Catalog