Among the elite scientists exploring the reasons for unusual weather patterns and strange meteorological phenomena, one physicist suggests radio waves from outer space. Which group task role is he performing?

Kaden is enrolled in Public Speaking. He is nervous about giving speeches and decides to try a

technique that has always worked for him as the quarterback of the football team. He closes his eyes and pictures a perfect performance—from the beginning of the game to the end. This technique is called _________________. A. skills training. B. cognitive restructuring . C. practice. D. visualization.

Bryan really wants to date Tess, but she is dating someone else. So in the meantime, he dates Dyan, but fully intends to break up with her if or when Tess becomes available. Bryan is considering his

a. comparison level. b. reward level. c. comparison level of alternatives. d. cost level.