Question

A good friend of yours is a teacher of medical doctors.Through his experience,he has come to feel that doctors in various specialties differ in their moral and ethical standards. He decided to test this hypothesis using some of his interns as cases. He gives them a test that measures moral development on 100 point interval scale where the high score represents high moral development and low score represent low moral development. The interns are specialists in three areas, Orthopedics, pediatrics and oncology and theirs scores are shown as

orthopedics	Pediatrics	Oncology
77	63	54
84	93	97
66	83	76
44	56	65

1. df between groups =________________________

Answer 1