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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408961

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2857

IDENTIFY SNAKES BY LENGTH AND WEIGHT (2) (MR61239)

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

Overview

Valid: 410

Invalid: 590

Type: Discrete

Decimal: 0

loc_start_pos: 50

loc_end_pos: 50

Width: 1

Range: 1 - 4

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	CORRECT RESPONSE	156	38%
2	INCORRECT RESPONSE	31	7.6%
3	INCORRECT RESPONSE_duplicated_71	44	10.7%
4	INCORRECT RESPONSE_duplicated_79	179	43.7%
Sysmiss		590

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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