factor_analysis

Factor Analysis: 25 Personality items representing 5 factors

Data:

bfi.txt

Description: source

Tasks

1. Method justification *Propose one question relevant to a real-word situation that you will answer by using factor analysis. *Define one goal of the factor analysis within the scope of the data you just obtained. *Briefly explain how the factor analysis works. And what are the expected outcome. *State one assumption of factor analysis, and why it is important. *What is the definition of the communalities. *Define the problem of non-uniqueness of the factor model.

2. Data preparation *Perform necessary data cleaning. *Generate the correlation plot. *Perform EDA, and make sure you display at least one scatter plot, box plot and histogram.

3. Analysis *Choose number of factors and explain the reason. *Perform factor analysis without rotation. *What are the values of the unique variance? *What are the values of the communalities? *Perform factor analysis with varimax rotation. *What is the difference between these two factor analysis? *Explain what each factor could represent based on the values of the factor loading.