Sally is a 34-year-old woman who is diagnosed with MDD. She…

Sally is a 34-year-old woman who is diagnosed with MDD. She feels that it is likely associated with stress resulting from her troubled marriage of the past 10 years. She is initiated on an SNRI and reports initial improvement in symptoms. However, over the following months, the medication appears to lose its effectiveness despite her insistence that she is adhering to the dosing regimen. This is likely a result of:

Ruth spends all day taking care of her three children. She i…

Ruth spends all day taking care of her three children. She is constantly trying to solve problems that they cause and keep everything on track and frequently feels unhappy and stressed out. At dinner, Ruth’s friend says she looks completely exhausted and unhappy. Ruth thinks for a moment, then shrugs and says “it’s all worth it in the end.” According to the lecture, what social psychological principle best explains Ruth’s reaction to this situation?