Expectations for the disadvantaged

According to the article Teacher Expectations for the Disadvantaged by Robert Rosenthal and Lenore F.Jacobson.What is the central problem?Who are the “disadvantaged?”What is their hypothesis?”What is their plan and how will they execute it?When is an expectation valid? Give an example of a valid expectationWhat do they mean by the “problem of contamination?”How do they correct for it?Explain in detail the set up of the rat study (short quote)What are the results of the rat study? Citation neededWhat are the results of the questionnaires? Citations neededExplain the set ip of the plan they used at the Oak SchoolWhy was the Oak School a very good choice? Relate this to their hypothesisWhat was the time line for administering the Flanagan over the two years? Why so many administration of the same test?Cite the results