Next Article in Journal
Are Humans the Most Intelligent Species?
Next Article in Special Issue
Future Efforts in Flynn Effect Research: Balancing Reductionism with Holism
Previous Article in Journal / Special Issue
Can GE-Covariance Originating in Phenotype to Environment Transmission Account for the Flynn Effect?
Article Menu

Export Article

Open AccessArticle
J. Intell. 2014, 2(3), 106-118; doi:10.3390/jintelligence2030106

The Flynn Effect in Families: Studies of Register Data on Norwegian Military Conscripts and Their Families

Institute of Psychology, University of Oslo, P.O. Box 1094 Blindern, N-0317 Oslo, Norway
Received: 19 February 2014 / Revised: 2 May 2014 / Accepted: 19 August 2014 / Published: 18 September 2014
(This article belongs to the Special Issue Methodological Advances in Understanding the Flynn Effect)
View Full-Text   |   Download PDF [387 KB, uploaded 25 September 2014]   |  


In the present paper published data and new analyses are presented and discussed in order to demonstrate the power of family data (siblings and parents to military conscripts with IQ data) in the study of the Flynn effect (FE). In particular, it is shown how studies of the mean intelligence changes in sibships of different sizes and changing proportions of sibship sizes can enhance our understanding how these factors may influence FE. Some new analyses of correlations between intelligence and sibship sizes illustrate how family data can be used to investigate changes in the correlation pattern across generations. It is shown that comparison of the secular trends in the general population and in sibling pairs can be a powerful method in the exploration of the relative influence of between-families and within-families factors in the FE. Surprising connections between the birth order effect on intelligence and the FE are demonstrated. View Full-Text
Keywords: Flynn effect; intelligence; military conscripts; family data Flynn effect; intelligence; military conscripts; family data

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Sundet, J.M. The Flynn Effect in Families: Studies of Register Data on Norwegian Military Conscripts and Their Families. J. Intell. 2014, 2, 106-118.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
J. Intell. EISSN 2079-3200 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top