Sampling process: easy and quickest explanation
11:40
Ethical principles / principles of ethics in research
15:28
Types of sampling in research:simple explanation /english
13:05
Factors Influencing Sampling Process
11:12
Reliability of research tool :Easy and Quickest Explanation
9:10
Type I / Alpha & Type II / Beta Error with Simple Examples
14:02
Methods and tools of data collection :simple explanation
18:18
The beauty of data visualization - David McCandless
18:28