Home > Coverage Calculator
  Coverage Calculator v.1
      Find the percentage of individual words in a corpus that are covered by a given word list
This program calculates the number of times the words on a list appear in a corpus. For example, a list of the 2000 most common word families is often said to 'cover' up to 80% of the words in a general corpus of English. The coverage figure refers to individual words (or 'running words,' or 'tokens') appearing throughout a corpus. Headword lists can be expanded into full family token representations here . List coverage in texts can be calculated here (Demo 7).
Known max of this routine at end 2017: 13,000-word list x 2.3 million word corpus

COVERAGE RESEARCH: >   1. Nation (2006) 2. Laufer Ravenhorst (2010) 3. Schmitt Jiang Grabe (2011) 4. Schmitt Cobb et al (2015)  



AWL Heads

AWL Families

BNC 1k Fams

1k Fams

1k+2k Fams

1k Lemmas

1k+2k Lemmas

(1) Click or paste LIST here
    + add name (20 chars max)

(2) Choose Corpus

(3) Click


(4) Result