is the tendency of individuals to increase their liking for something that they have worked hard or suffered to attain.

Justification of effort

Explanation:

Justification of effort is a phenomenon whereby people view a goal or endpoint as beneficial and more favorable, if they worked hard or put more effort into achieving it. Justification of effort makes the goal to appear more attractive, worthwhile and justifies the effort put into accomplishing the goal. Effort justification helps in increasing attraction and commitment to a goal, group cohesion and stability are enhanced, effort justification is likely to increase persistence at tasks that are not altogether pleasant, especially when such tasks are seen as chosen.

using the scientific method.

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

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