Suppose that I performed a reliability analysis to determine whether high school students' grades in four different subjects (English, Math, Science, Social Studies) formed a reliable scale with a high Cronbach's alpha. I performed the analysis and got the results presented in the two tables below.

1. What is the reliability of this scale, as indicated by Cronbach's alpha? (1 pt) Is this a high or low level of reliability? (2 pts)
2. Which item seems to be contributing the least to the overall Cronbach's alpha? (4 pts)
3. Would you recommend removing an item from this scale? Explain your reasoning for why or why not. (3 pts)

Reliability Statistics Cronbach's Alpha N of Items 892 4 Scale Mean Scale Corrected Cronbach's if Item Variance if Item-Total Alpha if Item Deleted Item Deleted Correlation Deleted English grade 21.9358 111.296 769 859 Math grade 23. 1301 109.392 700 886 Science grade 22. 1658 105.074 801 847 Social studies 21.5330 110.514 787 853 grade