Which product attribute is defined as one whose lack of functionality does not make customers dissatisfied, but whose presence will add satisfaction?

Which of the following would be considered an example of the drop-off survey?

A) A researcher brings a questionnaire to a respondent's home and leaves it to be completed. B) A hotel leaves a questionnaire in a room for customers to evaluate their accommodations. C) A retail store offers a customer a survey and promises a gift certificate if they return the questionnaire on their next visit. D) A graduate student hands surveys out to other students to be placed in a drop box when completed. E) All of the above would be considered drop-off surveys

Which of the following statements about sample control is true?

A) Mailing lists for mail surveys are sometimes unavailable, outdated, or incomplete. B) It is possible to identify specific user groups within a mail panel and to direct the survey to households with specific characteristics. C) It can be difficult to prevent respondents from completing an Internet survey multiple times. D) All of the above statements are true.