Summarize these selected article findings and their source context. This brief is not the full article. Preserve units, populations, dates, assumptions and limitations. Distinguish illustrative calculations, vendor descriptions and measured results. Do not invent omitted information or claim to have read the complete article.

Product Review Statistics for Ecommerce

Selected article findings, not the complete article.

Products with five reviews were 3.7 times as likely to be purchased as products with zero reviews in Northwestern’s study. This is the study’s relative comparison.

In Northwestern’s study, displaying reviews was associated with a 190% relative conversion increase for lower-priced products and a 380% increase for higher-priced products. The comparison does not give the absolute conversion rate in either price group.

In PowerReviews’ 2023 survey, 93% of US respondents said ratings and reviews affected whether they purchased a product. Self-reported influence is measured separately from actual conversion.

In PowerReviews’ 2023 survey, 98% of US respondents said they were more likely to read reviews for a product they had never purchased. The item asks about likelihood of reading reviews.

Sources
https://spiegel.medill.northwestern.edu/how-online-reviews-influence-sales/
https://www.powerreviews.com/power-of-reviews-2023/