In the famous marshmellow test, children are given a marshmellow. If they successfully wait alone for the researcher to return, they are given another marshmellow. What skill does this illustrate?

delayed gratification

Explanation:

Delayed gratification describes the process whereby a subject resists the temptation of an immediate reward in preference for a later reward. Generally, delayed gratification is associated with resisting a smaller but more immediate reward in order to receive a larger or more enduring reward later.

a is the final ! : )

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.