Validating a survey instrument
"Non-testable" means that the research question cannot be answered by performing a statistical test.
The answers to these questions might be important to know, but the decision making criteria does not involve a statistical test.
As the process continues, the goals become more clearly defined and the research issues are narrowed.
Business and social science researchers often ask non-testable research questions.
The shortcoming with these types of questions is that they do not provide objective cut-off points for decision-makers.
There are basically two kinds of research questions: testable and non-testable.
Neither is better than the other, and both have a place in customer satisfaction and employee surveys.