1. Learning Objective: Describe one research method used to research schizophrenia: Twin Studies
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State the difference between MZ and DZ twins
Why are MZ/DZ twin studies useful (relate to shared genes and shared environments)
Define what is meant by concordance rates
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Create a step by step plan for a twin study which will investigate the extent to which schizophrenia is a genetic condition (what, when , where, how, why?)
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Apply my understanding of twin studies to help Elizabeth to understand whether she should be concerned about her own health on discovery that her twin sister Zara has been diagnosed with schizophrenia.

2. Describe one research method to study schizophrenia (4)
When an identical twin is diagnosed with schizophrenia the other twin is studied to measure the frequency with which both of them get schizophrenia/eq;
This is compared with the incidence of both of a pair of non-identical twins getting schizophrenia/eq;
This is because while twins reared together will share the same environment only identical twins share the same genes/eq;
Twins are genetically tested to ensure they are identical/eq;
Researchers will use hospital records to identify the first individual of the pair to be diagnosed/eq;

3. Learning Objective: Evaluate one research method used to research schizophrenia: Twin Studies
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Give two strengths and two weakness of twin studies
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Evaluate twin studies with regard to epigenetic factors
Evaluate twin studies using research studies such as Bocklage (1977)
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Apply my understanding of the weaknesses of twin to help Elizabeth to critically evaluate the evidence base which suggests that she has around a 40% chance of being diagnosed with schizophrenia
Make recommendations to Elizabeth about how to protect herself.

4. Learning Objective: Describe and evaluate one study as an example of your chosen research method used to research schizophrenia: Twin Studies – Gottesmann and Shields
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Complete a full GRAVE on Gottesman and Shields
Use Gottesman and Shields in your answer on Zara and Elizabeth
In the light of DSM 5 and the controversy regarding attenuated psychosis syndrome, create a news bulletin that responds to the idea that all MZ twins like Elizabeth should be asked to attend compulsory screening
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Describe the APFC of Gottesman and Shields (2,6,4,3)
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Give two strengths and two weaknesses of Gottesman and Shields (2+2)