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

Page views

487758

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3088

ANIMAL WITH A BACKBONE (D) (S061071)

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

Overview

Valid: 146

Invalid: 854

Type: Discrete

Decimal: 0

loc_start_pos: 332

loc_end_pos: 332

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	A	13	8.9%
2	B	15	10.3%
3	C	13	8.9%
4	D*	105	71.9%
Sysmiss		854

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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