Name: Suman Biswas ID: 13057470

Topic:

Data preparation (Questionnaire Checking & Editing)

Data preparation:Data Preparation is the process of collecting, cleaning, and consolidating data into one file or data table, primarily for use in analysis. 1. Handling messy, inconsistent, or un-standardized data. 2. Trying to combine data from multiple sources. 3. Reporting on data that was entered manually. 4. Dealing with data that was scraped from an unstructured source such

as .

Checking the questionnaire:

The initial step in questionnaire checking involves reviewing all questionnaires for completeness and interviewing or completion quality. Often these checks are made while fieldwork is still under way. If the fieldwork was contracted to a data collection agency, the researcher should make an independent check after it is over. A questionnaire returned from the field may be unacceptable for several reasons:

Editing:Editing is the review of the questionnaires with the objective of increasing accuracy and precision. It consists of screening questionnaires to identify illegible, incomplete, inconsistent or ambiguous responses.