The Caritas Development Institute (CDI) last week completed the latest in a series of three-month diploma courses for Catholics to help them improve their religious and social approach according to Church teachings. The fourth course ended October 6, with 20 people receiving certificates. CDI director and course trainer Thelma Irene Rozario, 50, said: “This is a regular course offered to about 20 people at a time. We are determined to produce better Church and social workers.”