Premium
THE SPEEDEDNESS QUOTIENT: A NEW DESCRIPTIVE STATISTIC FOR TESTS
Author(s) -
STAFFORD RICHARD E.
Publication year - 1971
Publication title -
journal of educational measurement
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.917
H-Index - 47
eISSN - 1745-3984
pISSN - 0022-0655
DOI - 10.1111/j.1745-3984.1971.tb00937.x
Subject(s) - quotient , statistic , statistics , test (biology) , mathematics , reliability (semiconductor) , correlation coefficient , descriptive statistics , combinatorics , physics , paleontology , power (physics) , quantum mechanics , biology
It is proposed to describe the speededness of a test by a new statistic, the Speededness Quotient (SQ). The SQ is derived by dividing the total number of unattempted items by the total number of errors. It is suggested that test publishers should report the SQ of a test especially when reporting the reliability as an odd‐even correlation coefficient.