Question

a survey which helps in pre testing the questionnaire is (1) pilot survey (2) cencus survey​

Answer 1

Answer:

Pilot Survey

Explanation:

Pre testing the questionnaire so as to know the shortcomings and drawbacks of the questions for pilot survey.

Answer 2

A pilot survey is a smaller version of a full survey in which the researcher sends out a questionnaire to a smaller group of people than the actual target population. You can predict participant response patterns and make any necessary changes to your research by gathering data from a convenience sample.

A pilot survey's major goal is to evaluate the research tools, such as questions, survey structure, and dissemination channels. If done correctly, it can assist you in identifying difficulties that may hinder the main data collection procedure.

Therefore, Pilot survey is the correct answer.