Is dictated writing worse than typed writing?

Not in the controlled study we could find. Novice dictators learn to match the speed and quality of their handwriting within a few hours, and that study points to composing skill as the larger factor. Dictated writing can get worse when the first draft is left as it came out, because recognition errors and spoken phrasing survive into the text. Our guide on whether dictation changes how you write sets out the full evidence.

Dictated letters matched handwritten ones after a few hours of practice

The clearest comparison comes from John Gould and Stephen Boies at IBM, who in 1978 timed and rated one-page business letters that people wrote, dictated to a recorder, or spoke. Novice dictators learned within a few hours to dictate with the speed and quality with which they wrote, although they did not believe they were doing that well ¹. That gap in confidence may explain why first-time dictation feels worse than it is.

The study has two limits. The dictation went to a recorder, not to a recognizer, so it does not measure the errors that speech software makes. The letters were also one page long. In a 1983 paper on the same line of work, the authors stated that speech recognition was not yet advanced enough to provide a reliable listening typewriter ². Recognition has changed a great deal since then, so the 1978 result tells you more about the composing skill than about today's software.

Planning takes most of the composing time, whatever the method

In the same 1978 study, about two-thirds of composition time went to planning, whether the letter was written, dictated or spoken ³. Kellogg's 2001 experiments suggest one reason. Planning, translating ideas into sentences and reviewing compete for one general-purpose working memory pool ⁴. The medium mainly changes how the words come out. A weak plan is likely to produce weak text by either method.

Recognition errors are the real cost of dictated text

The main weakness of dictated text is correction. Vertanen's 2006 study of dictation with a large-vocabulary recognizer found that fixing errors takes up most of the task time ⁵. Errors also hide well. In Hong and colleagues' 2018 study, people listening to recognized text missed more than half of the recognition errors ⁶. A draft that sounds right can still contain wrong words, so a single listen is not enough.

Where speech helped most: students who struggle with writing

The strongest result for speech comes from Snider's 2002 study of postsecondary students with learning disabilities. They wrote higher-quality essays, at a faster rate, with continuous speech recognition than with a keyboard ⁷. That is one thesis using older software, so treat it as evidence that speech can help, not as proof that it always does.

It depends on the text, the software and the revision

What to do

1. Draft in short passes. Dictate one paragraph at a time, so a wrong sentence is easy to find and replace. See how to dictate for the drafting technique.
2. Read the draft on screen. Errors and roughness are easier to see than to hear.
3. Check names, numbers and terms by hand. A sound-alike error is easy to miss by ear. The dictation mistakes guide covers the fixes for each cause.
4. Plan before you speak. Outline the points first, since planning takes about two-thirds of composing time ³.
5. Budget for revision. Correction took most of the task time in the lab work above, so expect the revision to take longer than the dictation. How to proofread dictated text gives the steps.

Dictation is a method, and the dictation entry explains the terms. For the related questions, see why dictated text sounds different from typed text and whether dictation can help with writer's block. Our dictation and voice typing hub lists every guide on the topic.