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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315133

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GEN\PRIMARY SCHOOL\READ WORDS (ACBG18B)

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

Overview

Valid: 930

Invalid: 70

Type: Discrete

Decimal: 0

loc_start_pos: 86

loc_end_pos: 86

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	Less than 25%	383	41.2%
2	25â€“50%	215	23.1%
3	51â€“75%	181	19.5%
4	More than 75%	151	16.2%
Sysmiss		70

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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