## Rank Correlation and Lines of Regression (Statistics for Psychologists)

Some gossips about mathematicians and a special case of correlation coefficient. We also look at what’s regression, how to apply.

## Comparing Two Distributions – Correlation Coefficient (Statistics for Psychologists)

So far we were busy finding one value to describe a distribution, and finding how spread the values are! Now, let’s look at how to compare two distributions!

## Measures of Dispersion – 2 (Statistics for Psychologists)

Standard Deviation If is the frequency distribution, then standard deviation, denoted by Greek letter σ (sigma) is given by where is the arithmetic mean of the distribution and ∑f =N . Mean Deviation Standard Deviation Uses absolute value to assure that final result is positive Squares to make all values positive, then takes positive square…

## Measures of Dispersion – 1 (Statistics for Psychologists)

Central tendency tells us about a number that describes the data – but – not about how ‘spread’ the data is. Meet the tools to measure the spread of data!

## Median and Mode (Statistics for Psychologists)

Two mode Central Tendencies: Media and Mode

## Arithmetic, Geometric and Harmonic Mean (Statistics for Psychologists)

A brief introduction to near-ideal mean, Arithmetic mean and two others.

## Measure of Central Tendency (Statistics for Psychologists)

Central Tendency is a basic tool in statistics. Here’s a short note on why it’s important and characteristics of a ideal central tendency.

## Scales of Measurement (Statistics for Psychologists)

Brief Introduction to Scales of Measurement

## Introduction to Statistics for Psychologists

What is statistics? How is it useful for Psychologists?

## Statistics for Psychologists: Prerequisites

This article lists prerequisites for the Notes on Statistics series which will be posted in coming days. Prescribed textbook in most of the Indian Universities is Fundamentals of Mathematical Statistics by Gupta and Kapoor by S. Chand Publishers. You can either buy a copy or download PDF from an external website. Please note that downloading…