Presents a classroom demonstration illustrating the connection between spread and Pearson's r. Discusses different factors that may result in an increase, decrease, or no change in r. Describes an exercise using decks of playing cards to generate hypothetical data on variables of intelligence quotient (IQ) and grade point average (GPA). (DK)

Describes a classroom demonstration that simulates a verbal encounter with a person experiencing symptoms of schizophrenia. Suggests that the instructor deliver an unannounced monologue that illustrates the disordered thought and speech of a person with schizophrenia. Discusses student evaluation of the demonstration. Concludes that students in…