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

314731

Downloads

2539

Total Instructional Hours per Year (ACDG08HY)

Data file: timss-2015-pop1-num-bg-sch-allcountries-metadata

Overview

Valid: 787

Invalid: 213

Minimum: 450

Maximum: 2880

Mean: 971.345

Standard deviation: 262.647

Type: Continuous

Decimal: 0

loc_start_pos: 189

loc_end_pos: 192

Width: 4

Range: 450 - 2880

Format: Numeric

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