Term
| What fraction of births are twins? |
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Definition
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Term
| What fraction of twins are MZ twins? |
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Definition
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Term
| What fraction of births are DZ twins? |
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Definition
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Term
| What fraction of births are same sex DZ? |
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Definition
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Term
| What fraction of births are different sex DZ? |
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Definition
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Term
| What factor gives females higher odds of twins? What are the odds? |
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Definition
| If DZ twinning is seen in her maternal line; the odds are 1/3. |
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Term
| What country has a very high DZ twin rate? |
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Definition
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Term
| Do DZ have the same placentae? |
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Definition
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Term
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Definition
| Differences in personality: stubbornness, curiousity, etc |
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Term
| Who did the longitudinal study of 1000 infants? |
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Definition
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Term
| What did the longitudinal study of infants measure? |
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Definition
| Activity, mood, adaptability, and attention span |
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Term
| When were kids consistent? |
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Definition
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Term
| What ages did the observe the children? |
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Definition
| 1 day, 1 month, 6 months, 1 year, 2 years, 6 years, 10 years |
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Term
| How many children in the longitudinal study were followed to 10 years? |
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Definition
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Term
| T/F - Early temperament continues to have a long-term impact. |
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Definition
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