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:
is the number of words,
is the number of periods (defined by period, colon or capital first letter), and
is the number of long words (more than 6 letters).
- Björnsson, C. H. (1968). Läsbarhet. Stockholm: Liber.
- Björnsson, C. H. (1971). Læsbarhed. København: Gad.