Top : Readability Formulas
- Linsear Write Readability Formula
- Like many useful readability formulas, the Linsear Write calculates the U.S. grade level of a text sample based on sentence length and the number of words with three or more syllables.
- Lix Readability Formula : The Swedish Readability Formula
- LIX is a readability measure to reveal the difficulty of reading a foreign text developed by Swedish scholar Carl-Hugo Björnsson. The word factor in Lix is the familiar word length variable; however, it is measured differently from most other readability formulas.
- Readability Formulas and the Active Role of the Reader
- You can use the same readability formula to measure any text for any reader for any purpose. The formulas focus narrowly on counting attributes of individual words and sentences. This generic approach to measure difficulty of a text implies that readers process information in a uniform and passive way, word by word, sentence by sentence.
- The Automated Readability Index (ARI)
- The Automated Readability Index (ARI) is a readability test designed to assess the understandability of a text. Like other popular readability formulas, the ARI formula outputs a number which approximates the age needed to comprehend the text. For example, if the ARI outputs the number 20, this equates to a student in college; a number 10 means students in 4th grade should be able to comprehend the text.
- The Bormuth Readability Index
- Like other popular readability tests, the Bormuth Readability Index calculates a reading grade level required to read a text based on two factors: 1) character count (average length of characters) rather than syllable count; and 2) average number of familiar words in the sample text. The Bormuth Readability Index uses the Dale-Chall word list.
- The Coleman-Liau Readability Formula
- Similar to the Automated Readability Index, but unlike most of the other grade-level predictors, the Coleman–Liau relies on characters instead of syllables per word. Instead of using syllable/word and sentence length indices, Meri Coleman and T. L. Liau believed that computerized assessments understand characters more easily and accurately than counting syllables and sentence length.
- The Flesch Grade Level Readability Formula
- Flesch Grade Level Readability Formula improves upon the Flesch Reading Ease Readability Formula. Rudolph Flesch, an author, writing consultant, and the supporter of Plain English Movement, is the co-author of this formula along with John P. Kincaid.
- The Flesch Reading Ease Readability Formula
- Flesch Reading Ease Formula is considered as one of the oldest and most accurate readability formulas. Rudolph Flesch, an author, writing consultant, and a supporter of the Plain English Movement, developed this formula in 1948.
- The FORCAST Readability Formula
- The FORCAST Readability Formula is the result of The Human Resources Research Organization of Alexandria, Virginia, to study the reading requirements of military occupational specialties in the US Army.
- The Fry Graph Readability Formula
- Edward Fry developed one of the more popular Reading Formulas – the Fry Graph Readability Formula. Fry, who worked as a Fulbright Scholar in Uganda, also helped teachers to teach English as a Second Language (ESL) for a few years, from 1963 and onwards.
- The New Dale-Chall Readability Formula
- The New Dale-Chall Formula improves the original Dale-Chall Readability Formula as expounded in A Formula for Predicting Readability in 1948. The creators of this formula were Edgar Dale and Jeanne Chall.
- The Powers-Sumner-Kearl Readability Formula
- The Powers-Sumner-Kearl Readability Formula is one of the best formulas to calculate the US grade level of a text sample based on sentence length and number of syllables.
Top : Readability Formulas