An HR Manager identifies an increase in turnover during the last two years and speaks with managers to determine the cause. The conclusion of the managers is refuted by the HR manager$$s analysis of exit interview data. The HR manager identifies a retention gap as the largest issue for the coming year and develops a plan to address it$.$

Which data sources does the HR manager use to investigate the turnover increase?

What advantages and disadvantages from those data sources does the HR professional encounter?

What are some other data sources that the HR manager could use? Why would the HR manager find those sources useful to analyzing this particular issue?