Suppose we are interested in asking if babies that are only a few minutes old prefer face-like stimuli over non-face-like stimuli. Imagine yourself as a researcher testing this idea. Which of the following would be the best way to do so?
A) Present the newborn with an array of squares resembling eyes and a nose alongside an array of squares resembling eyes, nose and a mouth. Observe the newborn's reaction through a small hole in the centre of the stimulus card.
B) Present the newborn with a photograph of a face alongside a photograph of a house. Observe the newborn's response by holding the stimuli on a card below your chin so that your view is unobstructed.
C) Present the newborn with a photograph of a face alongside a photograph of a face with inverted features. Observe the newborn's response through a small hole in the stimulus in the centre of the stimulus card.
D) Present the newborn with a cartoon of a simple geometric smiley face alongside a cartoon of a simple geometric frowning face. Observe the newborn's response through a small hole in the centre of the stimulus card.
Answer: C