A neonatolgist is curious to find out what the long-term effect of premature birth is on mental development. He goes to a large school district, assembles a sample of sixth graders, and determines each student’s IQ score. Fromeach student’s parents, he finds out if the student was full-term or premature at birth. What statistical test should he complete to figure out if there is a relationship between prematurity and IQ?

In this series of questions, there are no headings that tell which flowchart to use. Plus, some gaps occur in the flowchart. For example, if the scenario has two dependent samples with an ordinal-level dependent variable, there is no such test in the flowchart. Tests exist for such situations; they just weren’t covered in this book. So, if a scenario in this series calls for a “missing” test, just write, “No such test in book” as your answer.