Drawing on Research Described in the Textbook,evaluate the Claim That

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The Answer is Rosenthal and Jacobson's famous experiment,"Pygmalion in the Classroom" (1968),found that students whose teachers were told they were expected to show substantial IQ growth over the course of the year did in fact show substantial gains in IQ,even though these students were selected at random,not based on actual ability.Efforts to replicate the original study have yielded mixed results.Jussim and Harber (2005)reviewed almost 400 studies conducted in the 35years since the original study and found that most replications showed smaller teacher expectation effects (e.g.,a change of three IQ points),and that these effects only occurred if expectations were manipulated early in the school year.The most rigorous test of the teacher expectations hypothesis is to manipulate expectations at random; otherwise,any correlation between teacher expectations and student performance could simply be due to accuracy on the teacher's part.The influence of teacher expectations is strongest among first and second graders,as well as among lower-achieving,lower-SES,and African-American students.

Drawing on Research Described in the Textbook,evaluate the Claim That

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