Sherry hates to do financial reports. her boss encourages her when he gives her a financial report assignment and praises her when she gets it done on time and accurately. he is quite stern and scolds her if she complains about doing them. over time, sherry begins to feel more positively about doing the reports and actually comes to enjoy them. this is an example of the power of

The answer is the power of rewards and punishment in forming attitudes.  The boss tries to draw out an expectation of satisfaction by giving rewards. For instance, a promotion or in this question a positive feedback and recognition. And when Sherry complains, her boss tries to punish her but in the form of scolding. But punishment could also be demotion or downgrading, negative criticism, and/or public embarrassment.