- Author
- Year
- 2015
- Title
- Spearman's hypothesis tested comparing Libyan adults with various other groups of adults on the items of the Standard Progressive Matrices
- Journal
- Intelligence
- Volume
- 50
- Pages (from-to)
- 114-117
- Document type
- Article
- Faculty
- Faculty of Social and Behavioural Sciences (FMG)
- Institute
- Psychology Research Institute (PsyRes)
- Abstract
-
Spearman's hypothesis tested at the level of items states that differences between groups on the items of an IQ test are a function of the g loadings of these items, such that there are small differences between groups on items with low g loadings and large differences between groups on items with high g loadings, and it has been confirmed in a limited number of studies. In this paper, we tested Spearman's hypothesis, comparing groups of Libyan university students and adults with comparable groups from South Africa, Spain, and Russia, and a group of Roma (Gypsies) from Serbia (total N = 844). The analyses were carried out on comparisons between the Libyans and the other groups. Spearman's hypothesis was strongly confirmed with a mean weighted r with a value of .73. We conclude that Spearman's hypothesis tested at the item level appears to be a more regular phenomenon than previously thought.
- URL
- go to publisher's site
- Language
- English
- Permalink
- http://hdl.handle.net/11245/1.507415
Disclaimer/Complaints regulations
If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library, or send a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible.