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

321112

Downloads

2539

MAT\HOMEWORK\CORRECT ASSIGNMENTS (ATBM07CA)

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

Overview

Valid: 838

Invalid: 162

Type: Discrete

Decimal: 0

loc_start_pos: 161

loc_end_pos: 161

Width: 1

Range: 1 - 3

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Always or almost always	664	79.2%
2	Sometimes	173	20.6%
3	Never or almost never	1	0.1%
Sysmiss		162

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