Which of these was not one of the ideas Sir Francis Galton formulated about intelligence assessment?  a. Differences in intelligence are quantifiable. b. Intelligence can be measured by objective...

Which of these was not one of the ideas Sir Francis Galton formulated about intelligence assessment?

 a. Differences in intelligence are quantifiable.

b. Intelligence can be measured by objective tests.

c. Intelligence scores follow a bell-shaped curve.

d. Intelligence scores change over the life span.