Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Jan 2018 My Price 7.00

cross-sectional analysis

Suppose a state is considering whether to require that all public school teachers have a master's degree. currently, only 40 percent of the teachers in the state have such a degree.

a. A researcher conducts a cross-sectional analysis that compares test scores of students in the state whose teachers have master's degrees to the test scores of students in the state whose teachers do not. The researcher finds that students whose teachers have master's degrees score significantly higher on the standardized tests. Why might such a study be biased?

b. Now suppose another state conducted an experiment in which 500 students were randomly selected to be either in a class taught by a teacher with a master's degree (treatment group) or a class with a teacher without a master's degree (control group). This experiment found that the treatment group scored significantly better than the control group. How useful is this experiment in informing the state's decision about whether to have a master's degree requirement?

Answers

Maurice Tutor
(5)
Status NEW Posted 21 Jan 2018 06:01 PM My Price 7.00

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