According to linguistic research on product reviews, which linguistic feature has been shown to have the STRONGEST positive correlation with review helpfulness ratings?

In the world of language and linguistics, product reviews represent a fascinating intersection of consumer psychology and language patterns. Research has shown that specific linguistic features in reviews can significantly impact consumer purchasing decisions. This poll explores how language choices in product reviews affect consumer perception and behavior - a critical insight for linguists, marketers, and product developers alike.

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Use of technical jargon and specialized vocabulary
Narrative structure with temporal markers (first, then, after)
Predominance of positive emotional language
Higher frequency of first-person pronouns (I, me, my)