An Empirical Study of the Stability of a Group Mean in Relation to the Distribution of Test Items Among Students

Author(s):

Johnson, Clemens; Lord, Frederic M.

Publication Year:

1958

Source:

Education and Psychological Measurement, v18 n2 p325-329, Jul 1958

Document Type:

Article

Page Count:

5

Subject/Key Words:

Test Items, Mean Scores