Studies Have Shown That

question 5

Multiple Choice

Studies have shown that:

• A) the intelligence of adopted children is more highly correlated with their biologically unrelated parents than their birth parents.
• B) for adults, heritability estimates average around 0.15 to 0.20.
• C) the scores of fraternal twins reared together are more highly correlated than the scores of identical twins reared apart.
• D) as adopted children grow into adulthood, the correlation between their IQ scores and those of their biologically unrelated family members diminishes to zero.

---

Definitions:

Annual Nominal Rate

The interest rate stated on a loan or investment agreement, not adjusted for inflation or the compounding of interest.

Investment Opportunities

Potential placements of capital in projects or assets that could yield financial returns in the future.

Annuity Due

An annuity in which payments are made at the beginning of each period.

Equal Payments

Regular payments of the same amount over a specified period, often used in loan repayments or annuities.