Tryon's classic study of the breeding of "maze-bright" and "maze-dull" rat strains demonstrated
A) that after several generations of breeding, the slowest "maze-bright" rat outperformed the best "maze-dull" rat.
B) that after several generations of breeding, there were no differences in the "maze-bright" and "maze-dull" rats.
C) the fallacy of eugenics.
D) the power of extinction and spontaneous recovery.

Question

Tryon's classic study of the breeding of "maze-bright" and "maze-dull" rat strains demonstrated​
A) ​that after several generations of breeding, the slowest "maze-bright" rat outperformed the best "maze-dull" rat.
B) ​that after several generations of breeding, there were no differences in the "maze-bright" and "maze-dull" rats.
C) ​the fallacy of eugenics.
D) ​the power of extinction and spontaneous recovery.

Quizplus · Accepted Answer

Tryon's study showed that after several generations of selective breeding for maze performance, the "maze-bright" strain consistently outperformed the "maze-dull" strain, indicating that maze performance was heritable and could be selectively bred for. This contradicts the hypothesis of genetic determinism, which posits that intelligence is a fixed trait that cannot be influenced by environmental factors.

Tryon's Classic Study of the Breeding of "Maze-Bright" and "Maze-Dull