how do you correlate perception with helpfulness which statistical tool is appropriate for assessing correlation that between all three variables how do you measure helpfulness how do i measure my teacher's helpfulness what are likert scales used for how to correlate teachers likert scale what is the statistical instrument that correlates teacher helpfulness with likert type scales? what type of scale is usefulness? how important is helpfulness to me what is the purpose of the likert scale for a teacher's helpfulness what type of scale is helpfulness why use a likert scale in classroom can the likert scale determine the value of a teacher which statistic tool(s) would be used to assess correlation between teacher's helpfulness and their likert scale? what kind of scale is used to measure teacher helpfulness? what type of scale should teachers use? how to measure helpfulness on a likert scale why use a likert scale for the teacher how to compare teachers to likert scale what a likert scale is used for