Marcy wants to examine whether 4-month-old infants use colour patterns to tell physically similar animals apart. She wants to know whether infants can discriminate between a horse and a zebra, so she decides to answer her research question using the habituation paradigm.

a. Describe what the initial steps of her study would involve, leading up to the test trial. Specifically cite what the participant would be shown, what the experimenter would be looking for, etc. [1.5] b. Next, describe what the test trial of her study would involve, and what she would measure. [1.5] c. Why was the step described in part a. necessary in order to use this technique? [1] d. What would Marcy's results look like if children couldn't tell the zebra and horse apart? And what would her results look like if they could? [2] e. Rodrick is an animal-loving 10-year-old who just learned that zebras and horses can actually reproduce, resulting in hybrid animals called 'zebroids'. Up until this point, Rodrick's understanding was that only animals of the same species could reproduce, and this revelation forces him to adjust his working definition of the concept of species. Name and define the term for this process of concept revision Rodrick is undergoing [.5], and briefly explain what this example highlights about the nature of concepts. [.5]