Do not choose a study method because you identify as a visual or auditory learner
Many people believe everyone has a learning style and learns best when teaching matches it. Few studies have properly tested that claim, almost none support it, and some found the opposite pattern. People do have preferences, but preference alone does not show that matched teaching improves learning.
What it takes
Nothing. Stop using this classification to choose materials or courses, and avoid paying for learning-style assessments.
What you may gain
A commissioned review explained what a valid test requires: classify students by style, randomly assign students within each category to different teaching methods, then assess everyone with the same test. The claim requires a specific interaction: the method best for one style must differ from the method best for another. The review found virtually no evidence for that interaction. Despite a large literature on learning styles, very few studies used an adequate experimental design, and several directly contradicted the matching hypothesis. The authors concluded that existing evidence did not justify using learning-style assessments in educational practice.
Context & considerations
This does not mean every version of learning-style theory has been tested and disproved; many have never been tested adequately. The practical advice is to avoid paying for style assessments or choosing training on that basis. For better selection criteria, see subsidized training and short programs linked to specific jobs.
Research & references
Pashler H, McDaniel M, Rohrer D, Bjork R (2008). Learning Styles: Concepts and Evidence. Psychological Science in the Public Interest, 9(3), 105–119. https://doi.org/10.1111/j.1539-6053.2009.01038.x