Goal: This project is about a revision and extension of the national IQ dataset created by Lynn & Vanhanen (2002, 2012). The principal aims are a reestimation of national IQs by using strictly standardized methodes, ensuring the traceability of calculations and estimations, an expanding the dataset to more nations, (sub)populations and sources. A public documentation of the course of the project is to be made here on Researchgate to increase transparency, attantion and thus also contribution by interested people.
Lynn, R., & Vanhanen, T. (2002). IQ and the Wealth of Nations. Westport, Connecticut: Praeger.
Lynn, R., & Vanhanen, T. (2012). Intelligence. A Unifying Construct for the Social Sciences. London: Ulster Institute for Social Research.
- Richard Lynn's Lab
- 3.18 MBNIQ-DATASET (V1.3.2).zip
- 22.66 MBNIQ-DATASET (V1.3.1).zip
- 21.60 MBNIQ-DATASET(V1.3).zip
- May 2018
- 1.90 MBtheniqdatasev1_2.7z
- Third-degree polynomic formulas were designed for the purpose of smooth and stepless conversion of Raven's Matrices raw-scores into standardized IQ-scores.
- Formulas were designed with MSExcel for every age-group with the aim of a correlation >.99 between IQ-scores reported by original Raven's Matrices manuals and results from the respective formula itself.
- Best matches in IQ to raw-score trends were achieved by using third-degree polygonomic formulas (y=ax³+bx²+cx+d; x=raw scores; y=IQ), higher degrees caused severe deviations, especially in the upper ranges.
- Norms for APM(GBR)1992 for 16.00y to 17.50y were supplemented by gradual completion of given values for age groups 15.50y and 18.00y.
- Formulas from list are scheduled to replace cross-references to Raven norm tables in later versions of the NIQ-Dataset.
- May 2017