GIFSQ Tools · Module 12 — Sensory · Tool 231 of 500
Combine mean liking, top-two-box liking, and purchase intent into one weighted acceptance index for a consumer test.
Try sample values — fills the form with the worked example below.
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Acceptance index
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Mean liking score (/100)
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Pass mark (70)
Equation: Index = 0.50 × (mean ÷ 9 × 100) + 0.25 × top-two-box % + 0.25 × purchase intent %; pass at 70 or higher.
Method: ISO 11136:2014 hedonic testing; top-two-box and purchase-intent reporting per consumer-test practice.
Assumptions: Mean liking is on the 9-point hedonic scale; percentages are shares of consumers, 0–100.
Limitations: A composite index only — it does not replace the underlying liking distribution or a significance test.
Rounding: Index to 2 decimal places; intermediates unrounded.
This is a calculation aid, not a laboratory report — confirm against your accredited method before citing a value.
Method: ISO 11136:2014 hedonic testing; top-two-box and purchase-intent reporting per consumer-test practice.
Assumptions: Mean liking is on the 9-point hedonic scale; percentages are shares of consumers, 0–100.
Limitations: A composite index only — it does not replace the underlying liking distribution or a significance test.
Rounding: Index to 2 decimal places; intermediates unrounded.
This is a calculation aid, not a laboratory report — confirm against your accredited method before citing a value.
Worked example: Mean liking 7.2, top-two-box 65%, intent 70%: mean score 80.00, acceptance index 73.75 — passes the 70 mark.
Enter values above to see results.
Tool 231 of 500 — GIFSQ
