Ross is conducting a study where he has participants perform an implicit association test (IAT) at two time points - 1. Before, and 2. after, playing the computer game 'Mortal Combattle'.

The IAT that Ross is using involves categorizing concepts of 'self vs. other' and attributes 'peaceful vs. aggressive'. Ross hypothesizes that playing the game 'Mortal Combattle' will prime higher implicit levels of aggression in the participants.

Does the IAT provide an internal or external indicator of aggression?

Considering Ross's hypothesis, how are participants expected to behave when categorizing relevant words on 'self and peaceful' trials after playing the game compared with before playing the game?

How are participants expected to behave when categorizing relevant words on 'self and aggressive' trials after playing the game compared with before playing the game?

Has Ross used a within-participants or between-participants design?