“transposition: A reading, writing, or numeric error where letters or numbers or words are switched. For example, transposition in mathematics might involve writing or reading the number 258 for 852, or writing shinesun for sunshine.
Methods for treating the problem of transposition could include using a multimodal strategy such as asking the student to say the letters as he or she writes the word.”
Excerpted from: Turkington, Carol, and Joseph R. Harris, PhD. The Encyclopedia of Learning Disabilities. New York: Facts on File, 2006.