twins

The given data are IQ scores from identical twins; one raised in a foster home, and the other raised by birth parents.<p></p><p><ul><li>C Social class, C1=high, C2=medium, C3=low, a factor.</li><li>IQb biological.</li><li>IQf foster.</li></ul></p>

datasets

Provides miscellaneous functions for carrying out political behaviour analysis, including measures of political fragmentation, seats allocation, and graphical demonstrations.

Daniel Marcelino

SciencesPo

A Tool Set for Analyzing Political Behavior Data

twins function

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Burt, C. (1966). The genetic estimation of differences in intelligence:
 A study of monozygotic twins reared together and apart. Br. J. Psych., 57, 147-153.

twins: Burt's twin data

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