Another Failure to Replicate Lynn's Estimate of the Average IQ of Sub-Saharan Africans

Autor/inn/en	Wicherts, Jelte M.; Dolan, Conor V.; Carlson, Jerry S.; van der Maas, Han L. J.
Titel	Another Failure to Replicate Lynn's Estimate of the Average IQ of Sub-Saharan Africans
Quelle	In: Learning and Individual Differences, 20 (2010) 3, S.155-157 (3 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1041-6080
DOI	10.1016/j.lindif.2010.03.010
Schlagwörter	Stellungnahme; Legislators; Academic Achievement; Intelligence Quotient; Foreign Countries; Sampling; Psychometrics; Elementary School Students; Secondary School Students; Scores; Intelligence Tests; Cognitive Ability; Africa; United Kingdom; Raven Progressive Matrices + Suchen Sie Ihr Suchwort? Schulleistung; Intelligenzquotient; Ausland; Psychometry; Psychometrie; Sekundarschüler; Intelligence test; Intelligenztest; Denkfähigkeit; Afrika; Großbritannien
Abstract	In his comment on our literature review of data on the performance of sub-Saharan Africans on Raven's Progressive Matrices, Lynn (this issue) criticized our selection of samples of primary and secondary school students. On the basis of the samples he deemed representative, Lynn concluded that the average IQ of sub-Saharan Africans stands at 67 when compared to UK norms after a correction of the Flynn Effect. We criticize his methods for being unsystematic. Here we select only those samples that were based on stratified or clustered random sampling and were deemed representative by the original authors. We again fail to replicate Lynn's low estimate of the average IQ of Africans. We argue that these scores are hard to interpret in terms of latent cognitive variables such as "g" because of the psychometric incomparability we established and because the Flynn Effect has yet to take hold in sub-Saharan Africa. (Contains 1 table.) (As Provided).
Anmerkungen	Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10