You Are Trying to Interpret the Data from a Twin

question 386

Multiple Choice

You are trying to interpret the data from a twin study on happiness that was recently published. The researchers measured self-reported happiness across various sets of twins who were either identical or fraternal, and either raised together or apart. If the results indicate that the identical twins raised together were actually not very similar on self-reported measures of happiness at all, what would this suggest?

• A)variation in happiness is mostly attributable to factors other than genetics and environment, such as unique individual experiences
• B)variation in happiness is mostly attributable to genetics
• C)variation in happiness is mostly attributable to environment
• D)variation in happiness is completely random and not something science can understand
• E)None of these interpretations would make sense on the basis of that result

---

Definitions:

Antipsychotic Drugs

Medications that are used to treat various symptoms of psychosis, including delusions and hallucinations.

Neuroleptics

A class of antipsychotic drugs used to treat psychiatric disorders, such as schizophrenia, by altering brain chemistry.

Monoamine Oxidase Inhibitors

A class of drugs that treat depression by preventing the breakdown of monoamine neurotransmitters, thereby increasing their levels.

Client-Centered Therapy

A form of psychotherapy developed by Carl Rogers that emphasizes the therapist's empathy and the client's self-worth and values.