To the best of my knowledge credit for this goes to Dolores Curran (1993)

The 15 most commonly found traits in healthy families:

• The healthy family communicates and listens
• The healthy family affirms and supports
• The healthy family teaches respect for others
• The healthy family develops a sense of trust
• The healthy family has a sense of play and humour
• The healthy family shares responsibility
• The healthy family teaches right and wrong
• The healthy family has a strong sense of kinship with many traditions
• The healthy family has a balance of interaction
• The healthy family has a shared religious core
• The healthy family respects the privacy of one another
• The healthy family values service to others
• The healthy family fosters family table time and conversations
• The healthy family shares leisure time
• The healthy family admits to problems and seeks help

Dave and I have one more item to add to this list. Obviously a healthy family is one in which God is at the centre.