Turner, Jean L. Using statistics in small-scale language education research : focus on non-parametric data / Jean L.Turner. - New York : Routledge, c2014. - xi, 344 p. : 23 cm. Includes Bibliographical References and Index. ISBN: 978 0 415 81994 7 Subjects--Topical Terms: Applied Linguistics--ResearchEnglish Literature Dewey Class. No.: 418.00727 / TUU