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

322286

Downloads

2539

MATH\TOPIC\GEOMETRY\GEOMETRIC PROPERTIES (BTBM21CA)

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

Overview

Valid: 911

Invalid: 89

Type: Discrete

Decimal: 0

loc_start_pos: 157

loc_end_pos: 157

Width: 1

Range: 1 - 3

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Mostly taught before this year	454	49.8%
2	Mostly taught this year	399	43.8%
3	Not yet taught or just introduced	58	6.4%
Sysmiss		89

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