Answer:
questionnaire
Step-by-step explanation:
In the scenario being described, the researchers were gathering questionnaire data. A questionnaire is a research instrument that consists of a set of questions that are asked to the individual with hopes of collecting that respondent's information regarding the subject. Which in this scenario, the subject in question is why the individual does not have checking accounts and credit cards with the company. These answers are usually used by the company in order to better their services and provide a better customer experience.