Adoption Studies COPY Flashcards
How do adoption studies work?
Find an adopted parent/adopted child with a specific trait
Look at how many biological family members and adopted family members also have that trait
Compare the concordance rates between biological family members and adopted family members
What does an adoption study show?
Whether a behaviour is genetic (higher concordance with biological family) or environmental (higher concordance with adopted family)
What is an example of an adoption study in Psychology?
Kety
What is a strength of an adoption study in terms of usefulness?
They help us determine whether a behaviour is due to nature or nature - it is useful in helping us determining why a behaviour may occur.
What is an ethical strength of an adoption study?
Adoption is a naturally occurring event that does not require manipulation of groups from the researcher - don’t need to worry about protection from harm etc
What is a weakness of adoption studies in terms of validity?
It may be difficult to establish what is due to nature or nurture - the prenatal environment of the children may be different.
Adopted children may be adopted by a family culturally similar to their biological one and so may end up with some shared environment.
What is a weakness of adoption studies in terms of generalisability?
There may be attrition (participant drop out). This is a weakness as the results in the adoption studies may not longer be representative.