Which Statement About Generalization Gradients Is False

Multiple Choice

Which statement about generalization gradients is false?

A) Generalization gradients produced by discrimination training are steeper than those produced by a single stimulus exposure.
B) Responding always falls off reliably as the difference between the test and training stimuli increases.
C) Generalization gradients become increasingly sharper or steeper the more similar the two training stimuli are.
D) The peak of responding on a generalization gradient is less likely to be at the S^D training stimulus as the S^D and S^Δ become more similar.