TWIN STUDIES
Lit review
Support
Contradict
Twins has twice as many shared environments as compared to singleton siblings
Difference in treatment
Difference in treatment from family members between singletons and twins.
E.g. Mother of twins are less responsive and communicate less to twins than Mother of singleton.
Being a twin has both positive and negative impacts on social development. Learn skills such as reciprocity faster than singletons but have more social isolation towards adults than singletons.
Benefits and disadvantages
Impact on development
is the difference significant enough
Twins have shared experiences which may foster a better support system as compared to siblings who are not twins
- Twins have lower rate of behavioral problems than singletons
Parent's expect one twin to help the other- Impacts social development.
less psychiatric symptoms in twin girls compared to singletons, less depressive symptoms also.
Main topic
Factors that affect social development.
Shared environment and experiences and non-shared.
Effect of non-shared environment on emotional development and other factors that affect one's social emotional development.
Family Environment
Subtopic
Interview Questions
Background info
Impact of being a twin
Impact of development
Difference in treatment
Advice for parents or twins
Benefits and disadvantages
Methodology
Comparing life experiences of twins with singletons
Naturalistic observation of twins
Limitations
observation might not be accurate
Only looking at one set of twins