5 – Measurement Scales Hierarchy

We discussed about different Measurement Scales of data in a previous post. The diagram below depicts the hierarchy among the different scales of measurement. Nominal scale of data contains the least amount of information and hence a limited set of statistical methods can only be applied on this data. This is represented by the inner […]

4 – Central Tendency

Measure of Central Tendency describes the middle point around which data is spread. This is one of the basic measures in Descriptive Statistics that allows us to understand the data in hand before proceeding with more complex analysis. Described below are some available methods for computing central tendency and the scenarios in which each of […]

3 – Interval Scale of Measurement

In the previous post we looked at the different measurement scales and variable types. Though we covered some description about Interval scale in that post itself, I thought I will follow it up with another post dedicated only for Interval Scale. Interval scale of measurement is one topic that I personally found little tough to […]

2 – Variable Types & Measurement Scales

Understanding different types of data is fundamental to the application of statistics. The data we have at our disposal can have variables that belong to different scales or levels of measurement. What scale a particular variable belongs to determines what kind of summarization or statistical methods can be applied on it. A variable can belong […]

1 – Introduction

In my 16+ years of work in Information Technology industry so far, I have been across different countries, domains and roles. Starting as a Mainframe Programmer Analyst, I moved on to specialize in Database Administration and then tried my hand at Project / Program Management. But the search has been on to find something more […]