Consumer Confusion Scale

What it measures

Measures consumer confusion arising from three distinct sources: overload (too many similar products or information to process), similarity (difficulty distinguishing between competing products or brands), and ambiguity (unclear or misleading product information). Consumer confusion leads to deferred decisions, suboptimal choices, and dissatisfaction. Increasingly relevant in digital and subscription markets.

Response format

Likert (1–5, strongly disagree to strongly agree)

Scale items

Overload Confusion — too much information makes choice difficult (Likert 1–7)

• There are too many brands to choose from in this product category.
• I find it difficult to choose between the different brands available.
• I find choosing between the options on offer a confusing process.
• There is so much information available on the different brands that it is difficult to make a decision.

Similarity Confusion — brands and products seem similar making differentiation hard (Likert 1–7)

• The brands in this product category seem very similar to each other.
• I can't see much difference between the various brands.
• It's hard to tell the different brands apart.
• I find the brands in this category very similar.

Ambiguity Confusion — product information is unclear or hard to interpret (Likert 1–7)

• I find the information provided on brands in this category unclear.
• I am confused by the information given on products in this category.
• Product information in this category leaves me uncertain about what to buy.
• I find the product descriptions in this category unclear and hard to understand.

Full scale items shown. Always cite the original source when using this scale in research.

Usage notes & scoring

Three subscale scores. Score = mean per dimension. Overload confusion is most prevalent in complex, high-SKU categories. Similarity confusion is common in mature commodity markets. Ambiguity confusion is heightened by vague health or sustainability claims. Widely used in research on labelling, product assortment, and digital platform design.

Recommended companion scales

Citation

Walsh, G., Hennig-Thurau, T., & Mitchell, V.W. (2007). Consumer confusion proneness: Scale development, validation, and application. Journal of Marketing Management, 23(7–8), 697–721.

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