Without knowing how many questions you’re asking about each customer, and what type(s) of questions they are, it’s hard to say for sure. But if you have more than two or three questions per customer, and the type of questions vary, I would not recommend using a Matrix or Side-by-Side question type. Even though they would be easier to program, organizing the questions that way will be very hard for the respondents to answer.

Hello,

These are 9 questions arranged in three blocks (three questions in a block) to which respondents can answer by selecting one of five answers.

However, I would like the respondent to be able to add a text comment when choosing the best or worst answer.

Respondents answer the same questions for customers, in other words, there are the same questions for each customer.

I don't need logic for the survey, the respondent answers all questions for each customer.

Respondent must provide 135 replies for 15 customers

Thank you.

In most cases it is probably easier for respondents to answer questions customer by customer. So, you would have a section for Customer A with questions 1-9, then a section for Customer B with questions 1-9, and so on.

The exception would be in a situation where you are asking the respondents to compare/rank all 15 customers with one another; in that case, I would have question 1 in a Matrix, and list all 15 customers, then question 2 in a different Matrix with all 15 customers listed, and so on.

In either scenario, the comment for best or worst answer should be a separate text question.