Research Question: How does social/ Social emotional development differ between fraternal twins and singleton siblings?
TWIN STUDIES
Limitations
Only looking at one set of twins
observation might not be accurate
Methodology
Naturalistic observation of twins
Comparing life experiences of twins with singletons
Interview Questions
Advice for parents or twins
Impact of development
Impact of being a twin
Background info
Factors that affect social development.
Subtopic
Family Environment
Shared environment and experiences and non-shared.
http://onlinelibrary.wiley.com.ezp1.lib.sp.edu.sg/doi/10.1111/1467-8624.00504/epdf
Effect of non-shared environment on emotional development and other factors that affect one's social emotional development.
Main topic
Twins have shared experiences which may foster a better support system as compared to siblings who are not twins
http://search.proquest.com.ezp1.lib.sp.edu.sg/docview/214270967?pq-origsite=summon
less psychiatric symptoms in twin girls compared to singletons, less depressive symptoms also.
Parent's expect one twin to help the other- Impacts social development.
- Twins have lower rate of behavioral problems than singletons
is the difference significant enough
Lit review
Impact on development
Benefits and disadvantages
Difference in treatment
https://books.google.com.sg/books?hl=en&lr=&id=1Cf5BwAAQBAJ&oi=fnd&pg=PA1&dq=why+are+twins+treated+differently+from+singletons&ots=tzdiqTlMYE&sig=3i44dU-V03NDtEu-pNQBrl6FBdM#v=onepage&q=why%20are%20twins%20treated%20differently%20from%20singletons&f=false
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.
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.
Contradict
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8493873&fileId=S136905230000355X
Twins has twice as many shared environments as compared to singleton siblings
Support
