Final answer:
The step 'weighing the costs and benefits of helping' is not included in Darley and Latané's decision tree of bystander intervention, which involves noticing the incident, interpreting it as an emergency, and assuming responsibility. The correct answer is d) Weighing the costs and benefits of helping.
Step-by-step explanation:
The decision-making process according to Darley and Latané involves a series of steps that a bystander goes through before deciding to help in an emergency situation.
The steps in Darley and Latané's decision tree include noticing the incident, interpreting the incident as an emergency, and assuming responsibility for intervening.
The option that is NOT one of the steps listed in their decision tree is weighing the costs and benefits of helping, which is more related to the later stages of the decision-making process after a bystander has already decided that there is an emergency and that they have a personal responsibility to act.
The correct answer is d) Weighing the costs and benefits of helping.