You Are Studying Gastroesophageal Reflux Therapy Among Two Hundred Premature

Multiple Choice

You are studying gastroesophageal reflux therapy among two hundred premature infants all of whom are less than 30 weeks and being tube fed in a NICU. You measure the average intraesophageal pH upon entry into the study, at two weeks, at four weeks and at six weeks. The best method to analyze this data is:

A) repeat measures ANOVA
B) Pearson's correlation coefficient
C) regression using a model that includes time, volume of feeds and intraespohageal pH
D) Chi-square