Keisha suffers from post-traumatic stress disorder (ptsd). her primary symptom is being unable to relax and difficulty falling asleep. based on this description, keisha's symptoms are an example of which aspect of ptsd

What has contributed to the growth of agriculture as big business in the midwest

Which action would the president's political party most likely take to resolve this issue

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: