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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382650

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2772

WHAT SUE NEEDS TO IMPROVE ON (1) (M041276B)

Data file: timss-2015-pop1-stu-ach-reliable-allcountries-metadata

Overview

Valid: 122

Invalid: 878

Type: Discrete

Decimal: 0

loc_start_pos: 147

loc_end_pos: 147

Width: 1

Range: 1 - 5

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	CORRECT RESPONSE	45	36.9%
2	CORRECT RESPONSE_duplicated_11	2	1.6%
3	CORRECT RESPONSE_duplicated_12	3	2.5%
4	INCORRECT RESPONSE	9	7.4%
5	INCORRECT RESPONSE_duplicated_79	63	51.6%
Sysmiss		878

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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