Increased IQ for Taiwanese children from 1997 to 2007: Flynn effect investigated

Hsin-Yi Chen, Yung Kun Liao, Yung Hua Chen, Jian Jun Zhu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The purpose of this study was to investigate the increase in IQ for Taiwanese children over the past 10 years. WISC-III and WISC-IV scores were collected following a counter-balanced design, based on a sample of 121 children aged 6 to 16 years old. The comparison between the WISC-IV and the WISC-III showed a mean difference of 1.23 FSIQ points. However, only five subtests were shared between WISC-III and WISC-IV full IQs. To partial out possible variations due to content differences, we estimated the increase in IQ based on the 10 core subtests of the WISC-III. Increased IQs over the intervening 10.5 years were 2.5 points, yielding an estimated growth of 0.24 IQ points per year. While America and other developing countries were still reporting an increased rate of 0.30 IQ points per year, increased IQ for Taiwanese children seemed slower than what the Flynn effect would have indicated. Current findings have matched recent reports from Scandinavian nations that the increase in IQ is slowing. Finally, Taiwanese children showed, comparatively, the largest gain on visual symbol search and nonverbal fluid reasoning abilities. However, Taiwanese children aged 10 to 16 showed no improvement in social and ethical reasoning, and those aged 6-12 showed a salient decline in the breadth of basic information. Possible hypotheses were discussed.

Original languageEnglish
Pages (from-to)167-191
Number of pages25
JournalJournal of Research in Education Sciences
Volume56
Issue number1
Publication statusPublished - 2011 Jan 1

Fingerprint

symbol
developing country
ability

Keywords

  • Flynn effect
  • IQ change
  • WISC-III
  • WISC-IV

ASJC Scopus subject areas

  • Education

Cite this

Increased IQ for Taiwanese children from 1997 to 2007 : Flynn effect investigated. / Chen, Hsin-Yi; Liao, Yung Kun; Chen, Yung Hua; Zhu, Jian Jun.

In: Journal of Research in Education Sciences, Vol. 56, No. 1, 01.01.2011, p. 167-191.

Research output: Contribution to journalArticle

Chen, Hsin-Yi ; Liao, Yung Kun ; Chen, Yung Hua ; Zhu, Jian Jun. / Increased IQ for Taiwanese children from 1997 to 2007 : Flynn effect investigated. In: Journal of Research in Education Sciences. 2011 ; Vol. 56, No. 1. pp. 167-191.
@article{ab5a0b2ce290470ca9fc8c0d33b32dcd,
title = "Increased IQ for Taiwanese children from 1997 to 2007: Flynn effect investigated",
abstract = "The purpose of this study was to investigate the increase in IQ for Taiwanese children over the past 10 years. WISC-III and WISC-IV scores were collected following a counter-balanced design, based on a sample of 121 children aged 6 to 16 years old. The comparison between the WISC-IV and the WISC-III showed a mean difference of 1.23 FSIQ points. However, only five subtests were shared between WISC-III and WISC-IV full IQs. To partial out possible variations due to content differences, we estimated the increase in IQ based on the 10 core subtests of the WISC-III. Increased IQs over the intervening 10.5 years were 2.5 points, yielding an estimated growth of 0.24 IQ points per year. While America and other developing countries were still reporting an increased rate of 0.30 IQ points per year, increased IQ for Taiwanese children seemed slower than what the Flynn effect would have indicated. Current findings have matched recent reports from Scandinavian nations that the increase in IQ is slowing. Finally, Taiwanese children showed, comparatively, the largest gain on visual symbol search and nonverbal fluid reasoning abilities. However, Taiwanese children aged 10 to 16 showed no improvement in social and ethical reasoning, and those aged 6-12 showed a salient decline in the breadth of basic information. Possible hypotheses were discussed.",
keywords = "Flynn effect, IQ change, WISC-III, WISC-IV",
author = "Hsin-Yi Chen and Liao, {Yung Kun} and Chen, {Yung Hua} and Zhu, {Jian Jun}",
year = "2011",
month = "1",
day = "1",
language = "English",
volume = "56",
pages = "167--191",
journal = "Journal of Research in Education Sciences",
issn = "2073-753X",
publisher = "國立臺灣師範大學",
number = "1",

}

TY - JOUR

T1 - Increased IQ for Taiwanese children from 1997 to 2007

T2 - Flynn effect investigated

AU - Chen, Hsin-Yi

AU - Liao, Yung Kun

AU - Chen, Yung Hua

AU - Zhu, Jian Jun

PY - 2011/1/1

Y1 - 2011/1/1

N2 - The purpose of this study was to investigate the increase in IQ for Taiwanese children over the past 10 years. WISC-III and WISC-IV scores were collected following a counter-balanced design, based on a sample of 121 children aged 6 to 16 years old. The comparison between the WISC-IV and the WISC-III showed a mean difference of 1.23 FSIQ points. However, only five subtests were shared between WISC-III and WISC-IV full IQs. To partial out possible variations due to content differences, we estimated the increase in IQ based on the 10 core subtests of the WISC-III. Increased IQs over the intervening 10.5 years were 2.5 points, yielding an estimated growth of 0.24 IQ points per year. While America and other developing countries were still reporting an increased rate of 0.30 IQ points per year, increased IQ for Taiwanese children seemed slower than what the Flynn effect would have indicated. Current findings have matched recent reports from Scandinavian nations that the increase in IQ is slowing. Finally, Taiwanese children showed, comparatively, the largest gain on visual symbol search and nonverbal fluid reasoning abilities. However, Taiwanese children aged 10 to 16 showed no improvement in social and ethical reasoning, and those aged 6-12 showed a salient decline in the breadth of basic information. Possible hypotheses were discussed.

AB - The purpose of this study was to investigate the increase in IQ for Taiwanese children over the past 10 years. WISC-III and WISC-IV scores were collected following a counter-balanced design, based on a sample of 121 children aged 6 to 16 years old. The comparison between the WISC-IV and the WISC-III showed a mean difference of 1.23 FSIQ points. However, only five subtests were shared between WISC-III and WISC-IV full IQs. To partial out possible variations due to content differences, we estimated the increase in IQ based on the 10 core subtests of the WISC-III. Increased IQs over the intervening 10.5 years were 2.5 points, yielding an estimated growth of 0.24 IQ points per year. While America and other developing countries were still reporting an increased rate of 0.30 IQ points per year, increased IQ for Taiwanese children seemed slower than what the Flynn effect would have indicated. Current findings have matched recent reports from Scandinavian nations that the increase in IQ is slowing. Finally, Taiwanese children showed, comparatively, the largest gain on visual symbol search and nonverbal fluid reasoning abilities. However, Taiwanese children aged 10 to 16 showed no improvement in social and ethical reasoning, and those aged 6-12 showed a salient decline in the breadth of basic information. Possible hypotheses were discussed.

KW - Flynn effect

KW - IQ change

KW - WISC-III

KW - WISC-IV

UR - http://www.scopus.com/inward/record.url?scp=84965130441&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84965130441&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84965130441

VL - 56

SP - 167

EP - 191

JO - Journal of Research in Education Sciences

JF - Journal of Research in Education Sciences

SN - 2073-753X

IS - 1

ER -