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

251765

Downloads

2197

WHAT IS A+B (1) (M042080A)

Data file: TIMSS-2015-pop2-ach-reliable-allcountries-metadata

Overview

Valid: 129

Invalid: 871

Type: Discrete

Decimal: 0

loc_start_pos: 158

loc_end_pos: 158

Width: 1

Range: 1 - 3

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	CORRECT RESPONSE	59	45.7%
2	INCORRECT RESPONSE	2	1.6%
3	INCORRECT RESPONSE_duplicated_79	68	52.7%
Sysmiss		871

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