In a calculation that considers the number of syllables per word and the number of words per sentence, the Flesch formula
produces a score that can be aligned with reading difficulty.
4, at 151-52, 165-69 (questioning the validity of Microsoft's version of the Flesch Reading Ease formula, and explaining the perils of using the Flesch formula
beyond its intended parameters).
The Spanish label comes from the name of the scientist who adjusted the initial Flesch formula
Despite of its age, the Flesch formula
is still widely used.
The Flesch formula
and other similar formulas rely chiefly on average sentence length and average number of syllables per word to estimate difficulty.
Interest levels as measured by the Flesch formula
are generally at the `interesting' or `mildly interesting' level though Science texts appear to rate `dull' at two age levels.
We chose the Flesch formulas
because we wanted to see if using longer sentences and longer words correlated with success on appeal.
13) The basic difference between Yunus and Flesch formulas
is that the passage length for Yunus calculations is three times longer.