1- Situation: Mary wants to pursue the Graduate Program in Cell Biology at Yale. She has the right grades and credits,but she is falling short of money to pay for the course.
Solution: Apply for student aid.
-------------------------------------------------------------------------------------------------
2- Situation: Mary is about to complete her course in Cell Biology. Her loan agreement requires her to pay back the loan in monthly payments. But Mary thinks it may be difficult to make monthly payments.
Solution: Change the repayment plan.
-------------------------------------------------------------------------------------------------
3- Situation: Mary received an award letter from Yale offering her a grant and a student loan. Mary is confused about some of the details in the letter. She isn’t sure how much the aid money is repayable.
Solution: Contact the financial aid officer.
Answer:history
Explanation:
Internal Invalidity occurs when the outcome of an experiment is not a representation of what actual went on in the experiment due to the fact that the experiment has been affected by other internal factors which had nothing to do with the actual experiment stimulus, so the dependent variable is affected by other internal factors. Sources responsible for this are maturation, testing , instrumentations,statistical regression, selection bias,history , demoralization and experimental mortality.
A history refers to the effect of an event that had occured which may affect how people feel about something rather than being affected by the stimulus in the experiment.
Like in this case people now are going to respond to the experiments based on the incident of gun shoting that they have heard about on the media their response are now going to be affected by that incident instead of the actual experiment. So this historic event that has just occured will affect the experiment.
