SOC 2700 Lecture Notes - Lecture 3: Twin, Somatotype And Constitutional Psychology, Twin Study

• School: University of Guelph
• Department: Sociology
• Course: SOC 2700
• Professor: Stephanie Howells

Document Summary

Regression to the mean false p. 55 big change in crime, (crack use against blacks), increase with crack, then it drops back down. Identical twins: monozygotic- one egg, one sperm, same placenta (andrew and patrick) Fraternal twins: dizygotic - 2 eggs, 2 sperms, separate placentas. Exam: not tested on numbers*** 33%, but will ask you about trends which category had the most of the least** p. 56 hutchings & mednick study. Adopted boy: more likely to commit crimes when there biological fathers had a criminal record*** nature is more important than nurture biology more important than environment. When both adoptive father and biological father have criminal record: 36% of children had a criminal record therefore, biological father info matters more than adoptive father. Extra chromosome- tall, lower iq, aggressive, anti social behaviour (all associated with criminal behaviour) Ectomorphs are lean, fragile, with a delicate body, droopy shoulders, small face, fine hair, and have little body mass but are tall.