Topic

Factor analysis and multivariate methods

Exploratory factor analysis, PCA and other multivariate methods explained step by step, with free online tools.

Exploratory Factor Analysis (EFA): A Step-by-Step Guide for Survey Research

From KMO and Bartlett's test to choosing the number of factors, rotation, loading cut-offs and an APA write-up, everything you need to run an EFA on questionnaire data.

October 13, 20265 min read

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Cluster Analysis OnlineFree k-means and Ward hierarchical cluster analysis online with standardization, cluster centers, elbow plot, silhouette score and dendrogram.Discriminant Analysis OnlineFree linear discriminant analysis: eigenvalues, Wilks’ lambda, standardized coefficients, group centroids and a classification accuracy table.Exploratory Factor Analysis (EFA) OnlineFree exploratory factor analysis online: KMO, Bartlett’s test, principal axis factoring, varimax rotation, scree plot and sorted factor loadings.Principal Component Analysis (PCA) OnlineFree PCA calculator: eigenvalues, percentage of variance, component loadings with optional varimax rotation, communalities and scree plot.