- TDIs
TDI stands for “Telephone Depth Interviews.” These are qualitative one-on-one interviews that are specifically conducted via telephone, in a way where follow-up questions can be asked and responses are free-form.
- Top Box
Top Box refers to the response to a scale question (like 1-5, 1-7, or 0-10) where there is a highest rating point, or the “top box.” This is generally reported as the % of respondents who selected that response.
- Tracker
A Tracker study is one that is repeated and allows comparisons of the same measures over time. Some trackers are “point in time” studies and are conducted annually, quarterly, or monthly, depending on the desired cadence, and data collection pauses between waves; and some trackers are “continual” studies and are conducted on an ongoing basis (continually collecting data without stopping between waves).
