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

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ENERGY USED BY PEOPLE: CONCRETE (B) (S051188A)

Data file: TIMSS-2015-pop1-studen-achievement-allcountries-metadata

Overview

Valid: 128

Invalid: 872

Type: Discrete

Decimal: 0

loc_start_pos: 284

loc_end_pos: 284

Width: 1

Range: 1 - 2

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	A	19	14.8%
2	B*	109	85.2%
Sysmiss		872

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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