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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IDENTIFY LINE WITH POSITIVE SLOPE (B) (M062351)

Data file: TIMSS-2015-pop2-studen-achievement-allcountries-metadata

Overview

Valid: 150

Invalid: 850

Type: Discrete

Decimal: 0

loc_start_pos: 147

loc_end_pos: 147

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	A	19	12.7%
2	B*	54	36%
3	C	51	34%
4	D	26	17.3%
Sysmiss		850

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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