Hanoi and Ho Chi Minh City are not one urban market
Why a two-city sample needs more thought than splitting interviews evenly between north and south.
Read field note ↗Practical guidance for teams designing, commissioning, or interpreting primary research in Vietnam.
Why a two-city sample needs more thought than splitting interviews evenly between north and south.
Read field note ↗A practical workflow for protecting meaning when an English brief becomes a Vietnamese interview.
Read field note ↗A usable QA plan names the failure modes, evidence, thresholds, and owner before the first interview.
Read field note ↗Channel labels can hide the shopping missions, relationships, and local variation that actually explain behavior.
Read field note ↗Recruiting the correct title is not enough; validate decision role, category exposure, and permission to speak.
Read field note ↗