Open AccessAN EMPIRICAL STUDY OF THE STABILITY OF A GROUP MEAN IN RELATION TO THE DISTRIBUTION OF TEST ITEMS AMONG PUPILS
Author(s) -
Johnson M. Clemens,
Lord Frederic M.
Publication year - 1956
Publication title -
ets research bulletin series
Language(s) - English
Resource type - Journals
eISSN - 2333-8504
pISSN - 0424-6144
DOI - 10.1002/j.2333-8504.1956.tb00066.x
Subject(s) - ranking (information retrieval) , group (periodic table) , test (biology) , statistics , set (abstract data type) , stability (learning theory) , mathematics education , psychology , mathematics , relation (database) , social psychology , computer science , information retrieval , data mining , machine learning , paleontology , chemistry , organic chemistry , biology , programming language
ABSTRACT Two alternative procedures of measuring group achievement under limited testing time are defined and empirically compared with respect to their efficiency in estimating a group mean and ranking a number of groups. The procedures are (A) administering the same set of items to each student in a group, and (B) administering a different set of items to each student in the group. Item scores on a college mathematics examination are employed in the comparisons.