Based on Shepard and Metzler's Research, Which of the Following

Multiple Choice

Based on Shepard and Metzler's research, which of the following statements is TRUE?

A) Humans are not very accurate in judging whether pairs of geometrical patterns are the same or different.
B) Decision times decreased when one of the shapes was rotated.
C) The rotation of one of the shapes produced more correct answers than rotation of the other shape.
D) As the degree of rotation of the shapes increased, so did the amount of time required by subjects to render a decision.
E) The degree of rotation had no effect on the amount of time subjects required to render a decision about the similarity of pairs of shapes.