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Cronbach, Lee J. (1951). "Coefficient alpha and the internal structure of tests". Psychometrika. 16 (3). Springer Science and Business Media LLC: 297–334. doi:10.1007/bf02310555. hdl:10983/2196. S2CID13820448.
Raykov, T. (2007). "Reliability if deleted, not 'alpha if deleted': Evaluation of scale reliability following component deletion". The British Journal of Mathematical and Statistical Psychology. 60 (2): 201–216. doi:10.1348/000711006X115954. PMID17971267.
Cronbach, Lee J. (1951). "Coefficient alpha and the internal structure of tests". Psychometrika. 16 (3). Springer Science and Business Media LLC: 297–334. doi:10.1007/bf02310555. hdl:10983/2196. S2CID13820448.
Revelle, W.; Zinbarg, R. E. (2009). "Coefficients alpha, beta, omega, and the glb: Comments on Sijtsma". Psychometrika. 74 (1): 145–154. doi:10.1007/s11336-008-9102-z. S2CID5864489.
Cronbach, L. J.; Shavelson, R. J. (2004). "My Current Thoughts on Coefficient Alpha and Successor Procedures". Educational and Psychological Measurement. 64 (3): 391–418. doi:10.1177/0013164404266386. S2CID51846704.
Green, S. B.; Lissitz, R. W.; Mulaik, S. A. (1977). "Limitations of coefficient alpha as an Index of test unidimensionality". Educational and Psychological Measurement. 37 (4): 827–838. doi:10.1177/001316447703700403. S2CID122986180.
Ten Berge, J. M. F.; Sočan, G. (2004). "The greatest lower bound to the reliability of a test and the hypothesis of unidimensionality". Psychometrika. 69 (4): 613–625. doi:10.1007/BF02289858. S2CID122674001.