APÂ®, Advanced Placement ProgramÂ® or Pre-APÂ® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product. SATÂ® is a trademark registered and/or owned by the College Board, which was not involved in the production of, and does not endorse, this product.
1 The International Society for the Study of Individual Differences (ISSID) was founded in 1983 to foster research on individual differences in temperament, intelligence, attitudes, and abilities.
Original issue discount (OID). OID is a form of interest. It is the excess of a debt instrument's stated redemption price at maturity over its issue price (acquisition price for a stripped bond or coupon). Zero coupon bonds and debt instruments that pay no stated interest until maturity are examples of debt instruments that have OID.