Data M

Question 1

What’s data cleaning

Answer 1

Data cleaning is the process of transforming raw, “messy” data into reliable data that can be properly analyzed.

This entails identifying inaccurate, incomplete, or improbable data points and resolving data inconsistencies or errors, as well as renaming variable names to make them more clear and simple to manipulate.

Question 2

What’s data management

Answer 2

All activities involving data

It’s the entire life cycle of data rfrom initial planing, collection, analysis and presentation of the findings.

Question 3

What are the key steps involved in data management

Answer 3

Data Collection

Data storage

Data Processing: cleaning, editing, manipulation

Data Analysis

Data presentation

Question 4

Use of computer software in data management allows for?

And the Choice may be influenced by

Answer 4

Storage of large quantities of data

Ease of checking and correcting errors

Ease of tabulation and presentation of results

Quick statistical analysis

Organisational preference

User-friendliness

Portability

Ease of data conversion

Availability

System requirement etc.

Question 5

List Common examples of data management software

Answer 5

Epi Info

Epi Data

SPSS

Stata*

SAS*

Ms Excel; Access etc