For each active-hormone group, categorize dosage by high dose (above the median) vs. low dose (at or below the median) and assess whether there is any dose-response relationship (any differences in mean changes in secretion rates or pH between the high- and low-dose groups)?

Table 8.22: Format of HORMONE.DAT

 

Transcribed Image Text:

Variable Column Description/Code ID A ID Bilsecpr Bilphpr Pansecpr Panphpr Biliary secretion-pre Biliary pH-pre Pancreatic secretion-pre Pancreatic pH-pre Dose Dose Biliary secretion-post Biliary pH-post Pancreatic secretion-post Pancreatic pH-post Hormone Bilsecpt Bilphpt Pansecpt Panphpt G н Hormone 1=SAL/2=APP/3=CCK/ 4=SEC/5=VIP