A researcher is investigating verbal behavior among introverts and extroverts. The researcher first tests participants and classifies them as either introverted or extroverted. She then randomly assig

A researcher is investigating verbal behavior among introverts and extroverts. The researcher first tests participants and classifies them as either introverted or extroverted. She then randomly assigns participants to a high anxiety or a low anxiety social group and observes the number of words spoken by participants. The researcher wants to learn more about the effects of both personality style—introversion or extroversion—and social situation—high or low anxiety—on verbal behavior. In this case, verbal behavior is defined as the number of verbal communications uttered within a 5-minute observation period.

What type of research design is this? What are the variables being studied?

Define the main effects and interactions. Provide an example of a possible main effect that might emerge from this study. Additionally, provide an example of a possible interaction that might emerge.