Presentation is loading. Please wait.

Presentation is loading. Please wait.

Data Processing.

Similar presentations


Presentation on theme: "Data Processing."— Presentation transcript:

1 Data Processing

2 Editing Coding Classification Tabulation Analysis

3 Editing of Data After the data is edited, it becomes information
If data is not edited, it would take more time and would be difficult for the researcher to arrive at results Meaning Checking or testing of the importance of data Removing unnecessary unrequired information To provide accurate, complete and consistent info.

4 Editing of Data Micro and Macro Level Editing
Field and Central Editing Objectives to ensure Accuracy of data Consistency of data Completeness of data Coherence of aggregated data The best possible data

5 Editing of Data

6 Coding of Data Process of assigning figures or symbols to answers
Responses to be put into a number of categories Characteristics Exhaustiveness Mutually Exclusive Unidimensionality Netting or bucketing What do you like best in BMS? Questionnaires could be precoded

7 Classification of Data
Data classified into homogenous groups to get meaningful data Grouping of data into common groups or classes based on common characteristics Example: Data being classified as per target groups requested by clients

8 Classification of Data
Types Qualitative (Gender, Religions) Quantitative (number of members in family, pets, TV sets) Geographical area Class Interval (ranges: age, income)

9 Tabulation Process of summarizing raw data and displaying it in a compact form for analysis Orderly arrangement of data in a logical order While tabulation on the computer the data is converted to a numeric form Binary data sheets made

10 Tabulation 64 36 70 30

11 Definitely Would not buy
Tabulation Question: Would you buy this product? General Population (458) TG1 (156) TG2 (84) Definitely would buy 28.6 19.2 8.6 Probably Would buy 34.5 50.3 5.7 May or May not buy 9.4 20.1 16.3 Probably would not buy 22.8 6.4 35.7 Definitely Would not buy 4.7 4 33.7

12 Importance of Tabulation
Facilitates process of comparison Preserves space and reduces explanatory and descriptive statements at minimum Helps to detect errors and omissions Identity to data Helps simplify complex data Basis for statistical processing

13 Data Analysis Descriptive Analysis Inferential Analysis
Unidimensional Analysis Bivariate Analysis (Correlation and Causal) Multivariate Analysis Inferential Analysis Statistical confidence Determine validity of data with conclusion

14 Data Interpretation Converting the small stories to bigger ones
Explanations, reasons, causes can be provided Interpretations Generalisations Hypotheses testing Applying extraneous information Expert Opinions


Download ppt "Data Processing."

Similar presentations


Ads by Google