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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409136

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2857

27 X 43 = (D) (M061273)

Data file: timss-2015-pop1-num-ach-allcountries-metadata

Overview

Valid: 373

Invalid: 627

Type: Discrete

Decimal: 0

loc_start_pos: 116

loc_end_pos: 116

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	A	89	23.9%
2	B	91	24.4%
3	C	48	12.9%
4	D*	145	38.9%
Sysmiss		627

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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