Psychic Costs The metal cost of having to change an attitude or behavior. The more a person is involved in the previous behavior (e.g. cultural belief in the appropriateness of the activity), the higher the psychic cost to change the attitude or behavior Time Costs The amount of time required to undertake a behavior – for example, travelling by public transport has a relatively high time cost compared to driving a private car Energy Costs The amount of effort required to undertake the behavior – for example, whilst regular exercise is seen as having a high energy cost (it requires considerable sustained effort), sorting recyclable and non-recyclable garbage into two bins is seen as low energy cost