Which of the following is the first step in the data preparation process?

By: Prof. Dr. Fazal Rehman | Last updated: February 3, 2024

 

Question: Which of the following is the first step in the data preparation process?

A  Data validation

B   Data coding

C   Data editing

D Data tabulation

Answer:  Data validation

 

Steps in Data Preparation Description
Data Validation Checking the accuracy, completeness and integrity of the collected data.
Data Cleaning Identifying and correcting errors, inconsistencies and missing values in the dataset.
Data Transformation Converting or reformatting data to prepare it for analysis, such as normalizing or standardizing variables.
 Data Coding and Labeling Assigning codes or labels to categorical data for easier analysis and interpretation.
Data Aggregation Combining and summarizing data to create meaningful aggregated statistics.
 Data Tabulation Creating tables and summaries for reporting and analysis, often involving aggregating data into categories.
 Data Documentation Documenting the data preparation steps and any changes made to the dataset for transparency and reproducibility.
 Data Export Saving the cleaned and prepared data in a format suitable for reporting.
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