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Lelly Triads Definition

Also known as repertory grids and Kelly triads, used especially by advertising agencies to elicit consumer language for the products in question. Products (or other items) are written or pictured on cards which are dealt three at a time. The respondent is invited to pick the odd one out and explain why it is odd. The language and key discriminators are noted.

"Lelly" triads is actually a quirky, industry-specific misspelling of Kelly triads that has taken on a life of its own within the market research and advertising communities. The confusion over the name generally stems from a few factors:

• Oral tradition: In qualitative research agencies, techniques are often passed down verbally from senior moderators to juniors. Somewhere along the line, "Kelly" was misheard or slurred into "Lelly," and it stuck.
• The "L" sound slide: Because the word triad doesn't have an "L," but the core task involves looking at a list of options, labeling them and using a laddering technique to drill down into the data, the accidental alliteration to "Lelly" happens naturally in conversation.
• Industry solidification: It has been written as "Lelly" in enough research briefs, industry glossaries and agency training manuals over the decades that it became accepted industry slang.

The term Kelly triads is much more commonly used, especially outside the marketing research industry.

How do market researchers use Lelly triads?      

In qualitative marketing research, Lelly triads (more commonly known as Kelly triads) are a projective technique where participants are presented with three items – such as products, brands or concepts – and asked to identify which two are most similar and explain how they differ from the third. Used during focus groups and in-depth interviews, this method prompts respondents to articulate subtle distinctions and reveal their underlying attitudes and decision-making criteria. Researchers then analyze these insights to identify positioning opportunities, refine brand identity and guide product enhancements based on consumer perceptions.

What are key characteristics of Lelly triads in marketing research?  

• Uses sets of three items (products, brands, or concepts).
• Participants identify similarities and differences.
• Explores perceptions beyond surface-level responses.
• Often used in exploratory, qualitative research.
• Encourages deeper reflection and explanation.
• Helps uncover subconscious associations.

Why are Lelly triads important in market research?       

Lelly triads are important because they reveal nuanced consumer perceptions, help identify key differentiators and uncover attributes that drive brand preference. This insight supports positioning, messaging and product development strategies.

Who relies on Lelly triads in marketing research?             

Qualitative researchers, brand managers, product developers, advertising agencies, consumer psychologists and innovation teams rely on Lelly triads to gain a deeper understanding of consumer thought processes.