Generality is a term in behavioral psychology, that describes the functional relationships attained in one situation, which is used to predict the obtained relationship in a current or different situation.
In other words, it is the belief that the outcomes of experiments involving schedules of reinforcement, administered on non-human subjects can be generalized and be applicable to humans.
Hence, a science of behavior contributes to a useful technology of behavior change, to the extent that it discovers functional relations with GENERALITY across individuals.
It demontrates that he is a little bit selfish since if travelers are alone it means that there is a waste of gas or that the use of gas is not so efficient and also it is a harm to the environment since to produce gas we cause some damage to the environment.