While investigating the topic of speed reading for a school project, I came across this Slate article. The general idea (which I encountered in most articles I read which discussed this topic) would be that speed reading is not a skill that can be trained and improved (significantly).
College-educated people who fret they read too slow should relax.
Nobody reads much faster than 400 words per minute.
Research on this topic is hard to come by, and most articles discussing this topic cite Ronald Carver's (1990) "The Causes of High and Low Reading Achievement" and Keith Rayner's "Eye movements and information processing during reading", both of which seem to confirm the fact that speed reading is not a skill that can be improved, due to human limitation.
By speed reading, I mean reading with a speed significantly above 400, in the range of 600–1000, while retaining reasonable comprehension (70%).
Is speed reading a skill that can be improved (significantly)?