{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

5hadconvictions noncriminalbiologicalatleast1

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: s How much is due to genetics? How much to environmental factors? Twin Studies Twin Identical twins (MZ) 100% shared Fraternal twins (DZ) 50% shared Just like other siblings Importance? Environment becomes a control Finds support for delinquency and selecting of friends Problems? Methods, sampling, return rates; how much are twins treated the same? ADOPTION STUDIES ADOPTION Perhaps one way to gage biology’s influence is to: Look at children born of same parents but raised apart Mednick’s study – 14,427 adpoted boys Non­criminal biological parents OR adoptive parents – 13.5% had convictions Non­criminal biological & at least 1 adoptive parent criminal resulted in 14.7% At least 1 biological parent and non­ adoptive –20% At least 1 of each – 24.5% How much does environment impact this? These studies have methodological problems… Methodological Problems Methodological How is crime defined – type of behavior included; using incarcerated mothers; etc Varying amounts of time spent with biological paren...
View Full Document

  • Spring '14
  • Cesare Lombroso, TOTAL CRIMINAL POPULATION, EARNEST A. HOOTON, EVOLUTINARY THROW BACKS, Non­criminal biological parents

{[ snackBarMessage ]}