Jon Martin Sundet

The Effect of Sex Education on Adolescents' Use of Condoms: Applying the Solomon Four-Group Design

D. Eilertsen, I. L. Kvalem, Leiv S. Bakketeig, 1996, Health education quarterly.

Secular trends and sociodemographic regularities of coital debut age in Norway

P. Magnus, I. L. Kvalem, S. Samuelsen, 1992, Archives of sexual behavior.

Genetic and environmental contributions to the covariance between occupational status, educational attainment, and IQ: A study of twins

J. Sundet, P. Magnus, K. Tambs, 1989, Behavior genetics.