Using the data provided, calculate the split-half reliability of the test and provide the Spearman-Brown corrected reliability . Split the items by...

Using the data provided, calculate the split-half reliability of the test and provide the Spearman-Brown corrected reliability . Split the items by their item number: 1-10 and 11-20.

Item # : 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20

Score : 5,5,4,5,5,4,5,4,5,4,5,5,4,5,4,4,5,4,5,4