explanation to be sufficient. This study employed confederates who asked for donations door-to-door. Participants were either given a large, moderate, or small request initially. The large request involved 10 hours of volunteering for several weeks, the moderate request involved a $30.00 donation, and the small request involved a donation of any amount. The confederate gave the smaller request after an initial large or moderate one. Participants then filled out a questionnaire that asked about the respondent's perceived obligation to comply, perceptions of negotiation and/or helping in the situation, and whether the respondent was friends with the confederate. Results show that participants were more likely to comply for friends than strangers, the DITF technique had greater compliance overall than a small request alone, and the DITF technique had larger increases in compliance for strangers. Findings regarding social responsibility and reciprocal concessions were inconclusive, with high correlations between perceptions of negotiation and guilt as well as guilt and obligation. The researchers suggest that both of the explanations work together in the DITF effect. Self-presentation In a similar study looking at differences between friends and strangers using the DITF technique, the DITF technique was more effective in increasing compliance for friends than strangers, which is contrary to other research findings. The researcher explains the results as evidence for the importance of self-presentation when friends use the DITF technique. They suggest that the respondents' need to present themselves well to their friends motivates compliance to the second request. Guilt reduction Research on the influence of guilt indicates that it plays an important role in the effectiveness of the DITF technique. Participants began the study by filling out a questionnaire related to demographics and health. The experimenter then told the participant he or she was finished with the experiment. As the participant was leaving, the experimenter asked the participant to record meals for the next three months as a part of a larger study on health. After refusal, the experimenter then made a second smaller request for the participant to record their meals for four days. There was a control condition that only received the second smaller request. Participants were assigned to one of four groups: high guilt induction and high guilt reduction, high guilt induction and low guilt reduction, low guilt induction and high guilt reduction, and low guilt induction and low guilt reduction. The high guilt induction statement indicated that the rejection of