Reliability and validity of screening scales: Effect of reducing scale length

The CES-D Scale

Lenore Sawyer Radloff · Applied Psychological Measurement · 1977 · 53.3K citations · Full text

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Coefficient Alpha and the Internal Structure of Tests

Lee J. Cronbach · Psychometrika · 1951 · 43.2K citations · Full text

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Statistical Methods for Rates and Proportions.

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Statistical Theories of Mental Test Scores

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Jean Endicott · Archives of General Psychiatry · 1978 · 5.7K citations

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