This shows there is a relationship, or correlation, between the two variables. The line has a positive gradient. This relationship is called a positive correlation.

First, it is not a simple comparison of just two elements as you would find in a bar chart, or numbers over time as in a line graph. The scatterplot plots two variables in relationship to each other.

A linear relationship (or linear association) is a statistical term used to describe a straight-line relationship between two variables. Linear relationships can be expressed in either a graphical ...

The formula for Pearson’s correlation coefficient, r, relates to how closely a line of best fit, or how well a linear regression, predicts the relationship between the two variables. It is presented ...

Spearman’s rank correlation is a statistical technique used to understand the relationship between two variables when the relationship does not conform to a linear pattern. Spearman’s rank correlation ...

Assess a discrete measurement. Perform analyzes for potential and long term control and capability. Make decisions on measurement systems process improvement. In this module, we will learn to identify ...

Graphs, visual representations outlining the relationships between different entities, concepts or variables, can be very effective in summarizing complex patterns and information. Past psychology ...

Proper handling of continuous variables is crucial in healthcare research, for example, within regression modelling for descriptive, explanatory, or predictive purposes. However, inadequate methods ...