Are learning styles real?
The popular version, that each person has a style such as visual, auditory or kinaesthetic and learns best when taught in it, is not supported by evidence. It is among the most widely believed ideas in education and among the most thoroughly tested and unsupported.
The specific claim that fails is called the meshing hypothesis: that matching instruction to a preferred style improves outcomes. Studies designed to test it properly, by measuring whether matched instruction outperforms mismatched instruction, consistently find no benefit. Reviews of the literature have repeatedly reached the same conclusion.
What is true, and what gives the idea its plausibility, is that people do have preferences. Some enjoy diagrams, others prefer reading. Preference is real; the claim that teaching to it improves learning is the part that fails.
What actually determines the effective format is the material rather than the learner. Geography is better learned with maps for everyone. Music is better learned by listening for everyone. Physical technique is better learned by doing for everyone. Choosing the format that suits the content is more productive than choosing one that suits the student.
The belief carries real costs. Students conclude they cannot learn material presented in a non-preferred format, teachers spend effort producing multiple versions of the same content, and institutions buy assessment products with no demonstrated effect.
The methods with strong evidence are unrelated to style and apply to everyone: retrieval practice, spacing, interleaving different problem types, and explaining material in your own words. These are less appealing than a personality-style framework and considerably more useful.