A trucking company plans to buy 100,000 gallons of diesel fuel in January. It can remove its risk by entering today into a (physical delivery) forward contract with a counterparty to buy the fuel at $2.50/gallon.

In the pretest-posttest control group design shown above, selection bias is eliminated by ________

A) design control B) randomization C) matching D) statistical control

Interaction posture is best defined as the ________

A) tendency to contradict the beliefs of others B) understanding and modeling of local proxemics C) ability to respond to others in a nonjudgmental way D) capacity to be flexible to promote group communication