Lix (readability test)
# Lix (readability test)

LIX (abbreviation of Swedish läsbarhetsindex, "readibility index") is a readability measure indicating the difficulty of reading a text developed by Swedish scholar Carl-Hugo Björnsson. It is computed as follows:

${\text{LIX}}={\frac {A}{B}}+{\frac {C\cdot 100}{A}}$, where

$A$ is the number of words,

$B$ is the number of periods (defined by period, colon or capital first letter), and

$C$ is the number of long words (more than 6 letters).

Scores usually range from 20 ("very easy") to 60 ("very difficult").

