Internal consistency and Cronbach's alpha: A comment on Beeckman et al. (2010).

@article{Kottner2010InternalCA,
  title={Internal consistency and Cronbach's alpha: A comment on Beeckman et al. (2010).},
  author={Jan Kottner and David L Streiner},
  journal={International journal of nursing studies},
  year={2010},
  volume={47 7},
  pages={926-8}
}