Answer:
The reason is that the Americans didn't know that war was officially over and that the peace treaty was already signed. The peace was signed in December of 1814, while the battle happened in January of 1815.
Explanation:
We need to have in mind that in this information people still needed a lot of time to obtain certain information from different continent. Literally, you needed someone to transmit information by boat, and it usually needed a couple of months for it. It is interesting that Americans believed that this battle was decisive one.
You must give credit to the source of your information on a written document or an oral presentation, to do otherwise would be to commit fraud. The offense is titled plagirism. It means you have taken anothers property (their knowledge) and presented it as your own rather than giving them credit for the information. Simply re-phrasing an idea may or may not be enough to rise above the offense but its best to stay on the up and up.
The answer is "<span>social desirability bias".
Social desirability bias alludes to the way that in self-reports, individuals will frequently report erroneously on delicate points keeping in mind the end goal to introduce themselves in the most ideal light. This can be because of both self-misleading and other-misdirection.
</span>