Professor scott conducts research on teenage risk-taking behavior. he would like to develop a hypothesis on the parental influence on teenage risk-taking at the extreme end of the spectrum, with a focus on teenagers who sail around the world alone. would a case study be an appropriate first step, and why or why not? a. yes, because professor scott already knows that parents are the driving influence behind teenage circumnavigation. b. no, because case studies are too idiosyncratic and lack scientific rigor. c. yes, because teenage circumnavigators are rare and the data will generate new, or possibly falsify existing, hypotheses. d. no, because it will not generate a sufficient amount of data to be tested statistically.

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.