Effective communication principles are the same across all cultures

"I know we're starting to get on each other's nerves. Let's put aside our differences and finish up." This statement would most likely be made by a group member functioning in which of the following social maintenance roles?

a) Encourager-supporter b) Harmonizer c) Motivator d) Gatekeeper e) Coordinator

What element of Chip and Dan Heath’s SUCCESs principles prompts writers to identify the essential core of their ideas?

a. storytelling b. concrete c. simple d. strategic