How Reliable are the Common Measures of Difficulty and Validity of Objective Test Items?

Statistics in Psychology and Education

Henry E. Garrett · The American Journal of Psychology · 1947 · 1.6K citations

Natural Sciences, Educational Psychology, Psychology +9

The selection of upper and lower groups for the validation of test items.

Truman L. Kelley · Journal of Educational Psychology · 1939 · 745 citations

Education, Educational Assessment, Educational Measurement +12

Statistics in Psychology and Education.

Frederic M. Lord, Henry E. Garrett · Journal of the American Statistical Association · 1953 · 359 citations

Natural Sciences, Educational Psychology, Psychology +9

The difficulty of a test and its diagnostic value.

T. G. Thurstone · Journal of Educational Psychology · 1932 · 34 citations

Education, Educational Assessment, Educational Measurement +12

Choice of items for a test on the basis of difficulty.

Percival M. Symonds · Journal of Educational Psychology · 1929 · 24 citations

Education, Educational Assessment, Educational Measurement +9