In administering a questionnaire, a person may have the ability to answer a question accurately but be unwilling to answer it . i . Outline

In administering a questionnaire, a person may have the ability to answer a question accurately but be unwilling to answer it$.$

i$.$ Outline Four $(4)$ ways in which one can overcome the problem of non$-$co$-$operation by the respondent.

ii$.$ Outline Four $(4)$ methods of administering a questionnaire