Sr.No. | Questionnaire by Post | Sr. No. | Questionnaire with Enumerator |
(1) | A list of questions on a subject of enquiry is sent to the respondents by mail. | (1) | A list of questions on a subject of enquiry is carried to the respondents by the enumerators. |
(2) | This method can cover only literate population. | (2) | Presence of an enumerator enables this method to cover even the illiterate population. |
(3) | It is subject to non response due to indifferent attitude of non respondents. | (3) | Enumerators ask the questions to the respondent and hence immediate responses can be obtained. |
(4) | This method is likely to be the slowest of all methods of data collection. | (4) | This method is comparatively faster but becomes expensive since the enumerators are also to be paid. |