Survey Programming & Hosting Services

Our CLT Capabilities

We plan and execute central location tests (CLTs) end-to-end—from test design and stimulus planning to facility setup, respondent recruitment, scheduling, and on-site coordination.

Our teams run standardized protocols for product trials, packaging and concept evaluation, ad pre-testing, and sensory work—ensuring consistent stimulus exposure, tight quality control, and reliable capture of respondent feedback.

After fieldwork, we deliver well-structured outputs—clean data (where applicable), verbatims, key themes, and clear recommendations—so stakeholders can make confident go/no-go decisions.

How We Work?

We select strategically located facilities with high foot traffic and arrange professional testing environments with appropriate lighting, temperature control, seating, and equipment. Test design includes stimulus preparation, rotation sequences to avoid order bias, and structured questionnaires for consistent evaluation.

We recruit qualified participants through intercept methods at the facility location or pre-scheduled appointments. Rigorous screening ensures participants match target demographics, product usage criteria, and category involvement. We manage flow to maintain testing schedules and achieve required sample sizes.

Respondents evaluate products, concepts, or stimuli in standardized conditions using structured questionnaires with rating scales, preference rankings, and open-ended feedback. Trained interviewers guide the process, probe responses, capture immediate reactions, and ensure proper product handling and testing protocols.

Real-time data entry into digital platforms enables immediate quality checks, quota monitoring, and preliminary analysis. Supervisors oversee testing consistency, verify proper rotation sequences, check data completeness, and ensure adherence to protocols throughout fieldwork.

We analyze quantitative ratings combined with qualitative feedback to deliver comprehensive insights. Reports include statistical summaries, preference rankings, attribute performance, cross-tabulations by demographics, verbatim comments, and clear recommendations for product optimization or concept refinement.

Benefits

Controlled environments create consistent testing conditions, improving comparability across products, concepts, and packages.

Faster turnaround with efficient in-venue recruiting and structured workflows—ideal for rapid iteration and decision-making.

Real-time observation (in-person or remote) helps teams capture immediate reactions and probe key moments during evaluation.

Strong quality control, rotation management, and standardized protocols reduce bias and increase confidence in results.

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Frequently asked questions

01
What research objectives are best suited for a Central Location Test (CLT)?
CLTs are ideal when you need controlled, standardized evaluation of products, packaging, concepts, shelf displays, or ads. They work especially well for taste tests and sensory research, side-by-side comparisons, prototype feedback, and situations where consistent exposure and strict protocols are required.
02
How many respondents do you typically recruit for a CLT?
Sample sizes depend on the product category, number of cells/monads, and reporting needs. Many CLTs run with 100–300 completes per market for robust quant reads, while smaller CLTs (50–100) can work for early-stage screening. We recommend a design based on the decisions you need to make and the level of precision required.
03
Can you run CLTs across multiple cities or markets?
Yes. We operate CLTs through a network of facilities in high-traffic locations and can execute multi-city or multi-country studies with consistent SOPs. We manage vendor coordination, field supervision, and standardized training to keep execution aligned across markets.
04
Do you support blind testing, monadic designs, and rotation to reduce bias?
Absolutely. We can run blind or branded tests, monadic or sequential monadic, and balanced rotation plans. For sensory and taste tests, we also manage controlled preparation, serving order, palate cleansing, and hygiene protocols to ensure fair evaluation.
05
What deliverables will we receive after the CLT?
Deliverables typically include a cleaned dataset, topline summary, cross-tabs by key segments, statistical comparisons (where applicable), and a concise insight-led report with recommendations. If observation is included, we can also provide an highlights summary and curated verbatim feedback to bring key moments to life.

Talk to our qualitative research team

Ready to explore consumer motivations and behaviors in depth? Our experienced moderators and researchers are here to design and execute IDI studies that uncover authentic, actionable insights for your brand.