Carla continued to search for information on cars even after she purchased one. she would go over her decision in her head and pay attention to ads that featured the car she bought. she was also noticing how many other people drove her model of car, which made her feel more confident that she made a wise decision. carla is attempting to reduce

post-purchase dissonance.

Explanation:

Post-purchase dissonance is a consequence of the disparity between someone’s decision to buy something and the evaluation he had previously made. It´s especially likely when the putchase is irrevocable, such as when buying a new car like in this example. It´s unlikely that that decision can be reversed.

Seeking new information to back her purchase is how Carla attempts to reduce dissonance.

if interdependence implies a two-way dependence, and if each partner is equally dependent on the other for success, then there is an equal commitment to the making the partnership successful. the advantage is sustainability of the relationship, the disadvantage is that decisions are "democratic" and therefore may take longer to reach and more likely to be a compromise (which is not always the best solution). as the interdependence moves away from equality, the decisions become more influenced by the more independent partner. in the extreme the relationship becomes more dictatorial and more like "master-slave". generally the relationship has less commitment in both directions and is more likely to be temporary.

if one generalizes (and one shouldn't), equity partnerships, which is probably what is implied by interdependence, can be slow to progress or change but durable. the extreme alternative, independent-dependent partnerships tend to be efficient but more fragile.

hope this but you will have to site your own evidence. : )