Final answer:
Ernest Dichter, W.D. Scott, and Watson contributed to advertising in psychology, while Alexander Fleming did not.
Step-by-step explanation:
Ernest Dichter, W.D. Scott, and Watson were psychologists who contributed to advertising in psychology. However, Alexander Fleming was not a psychologist and did not contribute to advertising in psychology. He was a biologist and is best known for discovering the antibiotic substance penicillin.
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