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

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TIMSS and PIRLS

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Created on

Mar 20, 2021

Last modified

Mar 20, 2021

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WHY FROGS LAY MORE EGGS THAN BIRDS (1) (S051164)

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

Overview

Valid: 116

Invalid: 884

Type: Discrete

Decimal: 0

loc_start_pos: 279

loc_end_pos: 279

Width: 1

Range: 1 - 2

Format: Numeric

Questions and instructions

Categories

Value	Category	Cases
1	CORRECT RESPONSE	24	20.7%
2	INCORRECT RESPONSE	92	79.3%
Sysmiss		884

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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