Final answer:
Option b) 'Frustration always leads to aggression' is not an aspect of the revised frustration-aggression hypothesis. The revised theory acknowledges that frustration may increase the likelihood of aggression, but not all frustration results in an aggressive response. Other factors, including culture and personal traits, influence aggressive behavior.
Step-by-step explanation:
The revised frustration-aggression hypothesis includes the notion that aggression can be an outcome of frustration, but it does not claim that frustration always leads to aggression. Instead, it acknowledges that frustration may increase the probability of an aggressive response and that aggression might also stem from other emotional triggers. Therefore, the aspect that is NOT part of the revised frustration-aggression hypothesis is that frustration always leads to aggression.
Within the context of aggressive behavior studies, the original hypothesis by Dollard et al. suggested a direct causality where frustration would invariably lead to aggression. However, contemporary understanding through revisions of this theory accepts that the link is not always direct or inevitable. Other factors such as personal traits, situational variables, and the influence of culture on what is deemed as a threat can all play a role in aggression.
Option b) 'Frustration always leads to aggression' is therefore incorrect and not an aspect of the revised frustration-aggression hypothesis.