Researchers asked homeowners for permission to install a large, poorly lettered sign in their front yards. only 17 percent of the homeowners consented to the installations. researchers then approached different homeowners and asked if they could post a small sign. nearly all agreed. then, when asked two weeks later if they could post the large, ugly sign, 76 percent consented. the results of this experiment support: the foot-in-the-door phenomenon. the fundamental attribution error. groupthink. motivated forgetting.