Choosing the Right Method

There is no single correct research flow. The right method depends entirely on what you are trying to learn.

The core split: qual vs. quant

graph LR
    Q1[What are you trying to learn?]
    Q1 -->|The whys:<br/>subject reactions, motivations| QUAL[Qualitative<br/>Run by AI twins]
    Q1 -->|The how many:<br/>numbers, distributions| QUANT[Quantitative<br/>Run by respondents]

    QUAL --> FG[Focus groups]
    QUAL --> II[Investigative interviews]
    QUAL --> CC[Co-creation]

    QUANT --> SV[Surveys]
    QUANT --> CT[Concept testing]
    QUANT --> MP[Message prioritization]

Qual is run by AI twins, rich, individual-like consumer personas that answer in subjective, explanatory depth. You get the story behind the number.
Quant is run by respondents, light (mini) twins that give you statistically scaled results. You get the number.

Both are valid. Both are often necessary. The question is which comes first for your objective.

The why / what / how-much lens

Question	What it surfaces	Right method
Why does the consumer do this?	Motivation, belief, emotion	Qualitative: interview or focus group
What are they actually doing?	Behavior, choice, preference	Qualitative (reactions) or Quantitative (surveys)
How much / how many?	Scale, distribution, statistical weight	Quantitative: survey or concept test

Before picking a method, be explicit about which of these questions you need answered. Mixing them up, running a focus group when you need a number, or running a survey when you need an explanation, is the most common research planning mistake.

”There’s no right order”

A common assumption is that qual must come before quant: “I need to understand the problem through focus groups before I can design a survey.” Another camp insists the opposite: “I need to know the magnitude of a problem before I invest in qual.”

Both are right. Both are wrong. As the platform puts it:

“How would you know the focus group problem isn’t a niche problem without first knowing the magnitude? And how would you know what to survey without the qualitative direction? So both are right and wrong. There’s no right and there’s no wrong. How you create your own flow to get to the objective is where you have to use your head.”

Design the flow for the objective, not for the convention.

Decision table

Goal	Recommended method
Understand why consumers make a choice	Qual: investigative interview
Explore how a segment thinks about a category	Qual: focus group (standard or custom)
Get a quick reaction from a small group	Qual: small panel interview
Pick the best tagline from three options	Quant: message prioritization
Measure brand health vs. competitors	Quant: brand track survey
Classify your audience into sub-groups	Quant: segmentation survey
Test a creative asset before spend	Quant: creative testing
Stress-test an early concept	Qual: consumer co-creation
Validate a developed concept with numbers	Quant: concept / product testing
Brainstorm from twin output	Qual: innovation research (Six Thinking Hats, Round Robin)

Cross-method flows: two examples

Survey-first flow. Run a brand track or segmentation survey to understand the landscape and size the segments. Then run a focus group or investigative interview to understand why one segment behaves the way the numbers show.

Qual-first flow. Run a focus group or co-creation session to explore reactions and surface hypotheses. Then run concept testing or a custom survey to measure whether those reactions hold at scale.

Neither is inherently better. Choose the flow that answers your specific question sequence.

For the full catalog of each method, see Qualitative Methods and Quantitative Methods.