FAVis: Visual Analytics of Factor Analysis for Psychological Research

TL;DR

FAVis is an interactive visualization tool that helps psychological researchers interpret factor analysis results more objectively and effectively by providing multiple views, threshold settings, and tagging features.

Contribution

The paper introduces FAVis, a novel interactive visualization system that improves the interpretation of factor analysis in psychological research.

Findings

FAVis enhances understanding of variable-factor relationships.

The tool supports setting thresholds to balance clarity and information.

User study confirms FAVis's utility in research tasks.

Abstract

Psychological research often involves understanding psychological constructs through conducting factor analysis on data collected by a questionnaire, which can comprise hundreds of questions. Without interactive systems for interpreting factor models, researchers are frequently exposed to subjectivity, potentially leading to misinterpretations or overlooked crucial information. This paper introduces FAVis, a novel interactive visualization tool designed to aid researchers in interpreting and evaluating factor analysis results. FAVis enhances the understanding of relationships between variables and factors by supporting multiple views for visualizing factor loadings and correlations, allowing users to analyze information from various perspectives. The primary feature of FAVis is to enable users to set optimal thresholds for factor loadings to balance clarity and information retention. FAVis also allows users to assign tags to variables, enhancing the understanding of factors by linking them to their associated psychological constructs. Our user study demonstrates the utility of FAVis in various tasks.