Learn Before
Heston's (1966) Adoption Study on Schizophrenia
A foundational adoption study by Heston in 1966 provided early evidence for the genetic basis of schizophrenia. The research tracked 97 adoptees over 36 years, 47 of whom were born to mothers with schizophrenia. The results showed that 11% (five out of 47) of the adoptees in the high-risk group were later diagnosed with schizophrenia, whereas none of the 50 control adoptees developed the disorder.
0
1
Tags
Ch.15 Psychological Disorders - Psychology @ OpenStax
Psychology @ OpenStax
Introduction to Psychology @ OpenStax Course
OpenStax
OpenStax Psychology (2nd ed.) Textbook
Psychology
Social Science
Empirical Science
Science
Related
Gene-Environment Interaction in Schizophrenia: The Tienari et al. (2004) Study
Heston's (1966) Adoption Study on Schizophrenia
A researcher conducts a study on adults who were adopted as infants. The study finds that the likelihood of an adoptee developing schizophrenia is significantly higher if their biological parent has the disorder, even if their adoptive parents do not. Conversely, the likelihood is not significantly increased if an adoptive parent has the disorder but the biological parents do not. What does this pattern of results most strongly suggest?