Lisa is interested in how well people are able to detect whether another person is a "cooperator", a "competitor", or an "individualist" simply by looking at a picture of the person’s face. she wants to know what kind of face can be identified most easily, and whether this varies by the race of the person in the picture. she designs a 2 x 3 within-group design where she has participants in her study look at faces from african-american and caucasian people who are "cooperators", "competitors", or "individualists." the participants identify the personality of the person in each picture and lisa keeps track of the number of pictures accurately identified for each picture type. how many cells was each participant in?