First Results from Using Game Refinement Measure and Learning
  Coefficient in Scrabble
  This paper explores the entertainment experience and learning experience in
Scrabble. It proposes a new measure from the educational point of view, which
we call learning coefficient, based on the balance between the learner's skill
and the challenge in Scrabble. Scrabble variants, generated using different
size of board and dictionary, are analyzed with two measures of game refinement
and learning coefficient. The results show that 13x13 Scrabble yields the best
entertainment experience and 15x15 (standard) Scrabble with 4% of original
dictionary size yields the most effective environment for language learners.
Moreover, 15x15 Scrabble with 10% of original dictionary size has a good
balance between entertainment and learning experience.
