Which linguistic device has been proven most effective in increasing conversion rates for e-commerce product descriptions according to 2023 research?

Marketing strategies heavily rely on language and linguistics to persuade consumers. Effective marketing copy employs specific linguistic techniques to trigger emotional responses and drive purchase decisions. This poll tests your knowledge about how language science influences modern advertising campaigns and retail psychology. Can you identify which linguistic technique has proven most effective in recent retail innovation studies?

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Phonetic symbolism (using words whose sounds evoke product attributes)
Hyperbolic maximizers (using terms like 'ultimate' and 'revolutionary')
Second-person direct address (using 'you' and 'your' consistently)
Contrastive focus reduplication (e.g., 'clean-clean' or 'new-new')