Spache

Spache is one method of finding out how hard the piece of writing is (its textual difficulty).

The method compares words in the text to the list of words which are familiar in everyday writing. The words that are not on the list are called unfamiliar. The number of words per sentence are counted. This number and the percentage of unfamiliar words is put into the formula. The result is the reading age. Someone of this age should be able to read the text.

Spache works best on texts that are for children under the age of eight.

the formula; (0.141 * average sentence lenght)+(0.086 * percentage of difficult words)+0.839 = grade level

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