Hernstein and Murray argued that those with a high value of this attribute were forming an elite in The Bell Curve.
The increase in this attribute over time is known as the Flynn Effect. Hernstein and Murray argued that those with a high value of this attribute were forming an elite in The Bell Curve. Originally proposed by William Stern, it is measured by the Stanford-Binet test. Those in the ninety-eighth percentile for this quantity can join Mensa, while those with a value below seventy for this attribute are considered mentally retarded. For 10 points, name this quantity, which measures mental acumen.
The increase in this attribute over time is known as the Flynn Effect.
{Intelligence Quotient} [prompt on {intelligence} before "Stern" is read]