Given below are two statements

Statement I: Questionnaires are filled in by the participants themselves.

Statement II: The interview schedule is filled in by the interviewer/researcher.

In light of the above statements, choose the most appropriate answer from the options given below

 Key PointsThe research process is incomplete without the collection of data which begins after the identification of research problems and the development of a study design.
Primary data is collected using a variety of approaches, including observation, interviews, questionnaires, schedules, and so on. In research surveys, both questionnaires and schedules are commonly used methods of data collection. The essence of these two systems has a striking resemblance, prompting many to suggest that they can be considered interchangeable from a practical standpoint.

 Important PointsStatement I: Questionnaires are filled in by the participants themselves.

A questionnaire is a research tool that consists of a set of questions or other forms of prompts designed to gather data from a respondent. A typical research questionnaire has a combination of closed-ended and open-ended questions. Long-form, open-ended inquiries allow the reply to elaborate on their opinions. The Statistical Society of London created research questionnaires in 1838. A questionnaire is a method of obtaining responses to questions by having the respondent fill out a form on his own. It is made up of a set of questions that are printed or typed in a specific order. These forms are addressed to the respondent, who is expected to read and understand the questions and respond by filling in the blanks with the appropriate responses. Hence this statement is correct.

Statement II: Interview schedule is filled in by the interviewer/researcher.

A schedule is a list of questions on a certain topic that are personally asked by the interviewer or investigator. The order of the questions, their phrasing, and the organisation of elements of the schedule remain unchanged. If the respondent has any difficulties, the investigator can explain the questions. Enumerators (interviewer/researcher) go to the informants with the schedule. Hence this statement is correct.

Therefore,Both Statement I and Statement II are correct