Dr. LaGuardia is a cognitive neuroscientist who is interested in the effect of brain concussions on the ability to recognize faces. He conducts a quasi-experimental study in which he examines football players before and after the regular season using the Benton Facial Recognition Test (a published, widely used measure of one’s ability to recognize faces) to compare those who received concussions to those who did not. He finds that players who had concussions during the regular season performed worse on the Benton Facial Recognition Test than did players who did not experience concussions. Which of the following makes Dr. LaGuardia’s quasi-experimental study different from a correlational study?

See the Fletcher scenario above for this question In addition to measuring the Body Concern of the participants who joined a fraternity/sorority both immediately before and immediately after they join, Dr. Fletcher measures them for the 3 weeks before and the 3 weeks after. This type of design is known as a(n):

See the Elder scenarios. Which of the following is the correct factorial notation for Dr. Elder’s new study?

See the Elder scenario above. Does it appear that there is an interaction effect?

See the Elder scenario above. Does it appear that there is a main effect for focus of activity?

Random selection enhances _________ validity and random assignment enhances _________  validity.

See the scenario above: Given that there are three conditions/levels of the independent variable, how many orders of the conditions are possible in Dr. Acitelli’s study?

In a previous correlational study, Dr. Lafayette has found that owning dogs is associated with lower levels of daily stress in a sample of returning war veterans. Which of the following would constitute a shift from theory-testing mode to generalization mode?

Why does Rip Van Winkle become a local legend?

Responsible journalists do which of the following as it pertains to discussing replicability?