1. Describe the two basic concerns with the calculation of split-half reliability and explain how these concerns are addressed by the Spearman-Brown formula, the K-R-20, and Cronbach’s alpha. 2....

1. Describe the two basic concerns with the calculation of split-half reliability and explain how these concerns are addressed by the Spearman-Brown formula, the K-R-20, and Cronbach’s alpha.

2. Describe the basic concern with measuring inter-rater reliability and explain how Cohen’s kappa addresses this concern.