Intermediate SPSS Training Workshop:
A focus on descriptive analysis, correlation and linear regression analysis techniques and interpretation methods
Descriptive statistics are used to describe the basic features of the data in a study. They provide simple summaries about the sample and the measures.
Used for the purpose of measurement of relationship between two variables (one dependent and other independent, or two independent variables).
To measure the pair of variables are linearly related or not?
Linear regression analysis
In statistics, linear regression is a linear approach to modelling the relationship between a scalar response (or dependent variable) and one or more explanatory variables (or independent variables).
Linear regression is a basic and commonly used type of predictive analysis. The overall idea of regression is to examine two things:
(1) does a set of predictor variables do a good job in predicting an outcome (dependent) variable?
(2) Which variables in particular are significant predictors of the outcome variable, and in what way do they–indicated by the magnitude and sign of the beta estimates–impact the outcome variable?