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Market researchHow to check instead of guessing

IDI

In-Depth Interview

An individual, semi-structured conversation lasting 30–90 minutes, exploring motivations and personal stories.

Why it matters

It reveals root causes that people won't share in front of eight strangers.

What's missing without it

Without it, sensitive topics and complex purchasing decisions remain undetected.

When it is used

For personal topics, long decision-making processes, and research in the B2B sector.

How we use it

Script, recording, transcription, and coding of responses.

Fun fact

In B2B research, fifteen interviews typically yield more insights than three focus groups — decision-makers from competing firms won't share valuable information in each other's presence.

Numbers worth knowing

Market research in data

18%

Odsetek Europejczyków posiadających prywatny produkt emerytalny (według EIOPA)

BCG2025Europe

3

Prognoza stosunku pracujących do emerytów w Europie do 2045

BCG2045Europe

31%

Odsetek konsumentów korzystających z AI na pewnym etapie ścieżki zakupowej, około 3-krotnie więcej niż 18 miesięcy temu.

Boston Consulting Group (BCG)2026global

Figures from the same field — collected in our market data base.

Related terms