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according to research subject or topic and the design of research. Classification or
categorization is the process of grouping the statistical data into various understandable
homogeneous groups for the purpose of convenient interpretation. Tabulation is the
process of summarizing raw data and displaying it in compact form for further analysis.
A knowledge on the various process involved is essential as it acts as a pre-requisite for
data analysis.

Assignments

1. Develop a questionnaire to study the opinion on a popular restaurant near your
locality. Collect data from 20 respondents which may comprise of your friends or
family members perform the following:
◆ Identify and correct any errors or inconsistencies in that questionnaire.

◆ Develop a coding scheme to classify respondents based on their Age and
Gender in above.

◆ Classify the opinion obtained from the 20 respondents into three groups-
Positives, Negatives, Neutral.

◆ Create a frequency table to show the distribution of participants across different
Age groups and Gender groups.

◆ Develop a cross-tabulation table to find relationship between the Gender and
Age of the respondents.

2. What is coding? What is the relevance of coding in data analysis?

3. Prepare a questionnaire to collect data from employees working in the textile in-
dustry and use the same questions in a schedule to collect data from the same re-
spondents after one week. Check whether the data received from the respondents
are the same. If yes, validate your reasons.

Self- Assessment Questions

1. Explain data processing.
2. Elucidate data reduction.

3. What do you mean by editing of data?
4. What is coding?

SGOU - SLM - MCom Research Methodology 149