Asalesperson driving to visit a client located two hours away has a tire blow out on the highway. he walks about a mile to the next exit where he finds a service station. the owner of the station says he can replace the blown tire, but it will cost twice as much as it would to purchase a tire in the salesperson's home city. the salesperson, not wanting to be late for his appointment, agrees to pay the higher price in order to get back on the road. this case illustrates the effect of on buying behavior.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a researcher conducts a comparison of the comments made in a publicly available blog and the blogger's comments on a similar topic in a weekly magazine. undergraduate students in a field methods class are assigned a research question and asked to interview another classmate, to be followed by a class discussion on interview techniques. a cognitive psychologist enrolls undergraduate students for a computer-based study about the effect of mood on problem-solving behaviors. a researcher sets up a meeting with the superintendent of a large and diverse public school system to get data about the ethnic composition of the school system and the number of students receiving free lunches.