B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
30%
30% -- purchase rate with 6 options for shoppers in jam study (2026)
In the Iyengar & Lepper jam study, 30% of shoppers shown six options made a purchase.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
30%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
Iyengar & Lepper
Primary
Tier B
https://kirro.io/product-page-optimization ↗
Source Article
Product Page Optimization for Ecommerce (2026)
Product page optimization is the process of improving every element on your ecommerce product page so more visitors buy. Not more traffic. More conversions from the traffic you already have. And 82% of ecommerce sites have serious product page UX problems, according to Baymard Institute’s research a…
Original Research
Iyengar & Lepper
· Original study ↗
Methodology
Iyengar & Lepper jam study
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
shoppers in jam study: 30% purchase rate with 6 options. Source: Iyengar & Lepper (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/jam-study-6-options-30
HTML Embed
<blockquote cite="https://lighthousedata.io/data/jam-study-6-options-30" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>30%</strong> -- purchase rate with 6 options for shoppers in jam study<br><small>Source: Iyengar & Lepper (2026) · <a href="https://lighthousedata.io/data/jam-study-6-options-30" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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