What are the three basic ways to collecting data?
here are three basic ways of collecting data:
(i) Personal Interviews : This method is used when the researcher has access to all the members. The investigator conducts face to face interviews with the respondents.
(ii) Mailing Questionnaire : When the data in a survey are collected by mail, the questionnaire is sent to each individual by mail with a request to complete and return it by a given date.
(iii) Telephone Interviews : In a telephone interview the investigator asks questions over the telephone. The advantage of telephone interviews are that they are cheaper than personal interviews and can be conducted in a shorter time. Telephone interview is better in the cases where the respondents are reluctant to answer certain questions in personal interviews.
