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A test for the differences between two groups' T ‐distributed statistics
Author(s) -
Willson Victor L.
Publication year - 1983
Publication title -
psychology in the schools
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 75
eISSN - 1520-6807
pISSN - 0033-3085
DOI - 10.1002/1520-6807(198304)20:2<250::aid-pits2310200220>3.0.co;2-h
Subject(s) - statistics , psychology , test (biology) , statistical significance , statistical hypothesis testing , statistical analysis , econometrics , mathematics , paleontology , biology
Researchers occasionally perform a statistical test for gains on two groups separately, and compare the results via significance for the two tests. While that procedure is incorrect statistically, there is a statistical test due to Ghosh (1975) that allows comparison of the difference between two independent t ‐distributed variables. It is presented here with a reanalysis of an incorrect result presented by Levy (1982).