Fan, C. (1952). Item analysis table: A table of item-difficulty and item-discrimination indices for given proportions of success in the highest 27 per cent and the lowest 27 per cent of a normal bivariate population. Educational Testing Service.
Cita Chicago (17th ed.)Fan, Chung-teh. Item Analysis Table: A Table of Item-difficulty and Item-discrimination Indices for Given Proportions of Success in the Highest 27 Per Cent and the Lowest 27 Per Cent of a Normal Bivariate Population. [Princeton, N. J.]: Educational Testing Service, 1952.
Cita MLA (9th ed.)Fan, Chung-teh. Item Analysis Table: A Table of Item-difficulty and Item-discrimination Indices for Given Proportions of Success in the Highest 27 Per Cent and the Lowest 27 Per Cent of a Normal Bivariate Population. Educational Testing Service, 1952.