In Exercise 7, the movement ratio results for the experimental condition revealed blocking because the value of the movement ratio for the medium-intensity light (CSML) during the extinction trial (Stage 3) was
a. virtually zero.
b. higher than the movement ratio for the tone in Stage 3.
c. nearly that same as that for the tone in Stage 3.
d. almost 1.0.
a. virtually zero.
Answer feedback: If the prior conditioning of the tone in Stage 1 blocked conditioning of the light in Stage 2, then the movement ratio for the light in Stage 3 (extinction) would show almost no conditioning, that is, the movement ratio would be close to zero.
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