Our professors are experts in their fields and bring years of practical experience to the. Terra Link hasn't been to the doctor in a while and for her first visit she hits gold with Dr. Ana Rose! The Pearson chi-square test, and when appropriate the Fisher exact test. Anna June 12, 2015 at 11:35 am #. Terra Link hasn't been to the doctor in a while and for her first visit she hits gold with Dr. Ana Rose!