[Midterm Q2] The Student t Test was the first experimental m…

[Midterm Q2] The Student t Test was the first experimental method to solving the basic test problem of comparing current vs. new product. a. Name the man responsible for inventing the Student t Test,  b. Name the company he worked for when he developed this test c. Name the decade he published the paper documenting this test (e.g. 1980’s)

[Midterm Q6] In the fall of 2012, my wife, Dr Deb Hutto, con…

[Midterm Q6] In the fall of 2012, my wife, Dr Deb Hutto, conducted experimental trials to prove her dissertation research proposal. Consider the case of teaching adult students attempting to earn a GED — students who already had unfavorable experiences with school. Dr Hutto theorized that teachers who involved the students in a learning community and encouraged them to believe in their ability to achieve would produce superior performing students over conventional methods. She was attempting to generate empirical evidence of the superiority of Motivational Systems Theory (MST) in a classroom setting. MST holds that properly taught students will be both more motivated and perform better academically. Dr Hutto was approved to conduct her experiment in 6 adult classes of approximately 10-15 students in three counties in northwest Florida. Dr Hutto randomly assigned conventional and motivational methods to six classrooms — three each — and measured student motivation and grade level both prior to the class and after the class. For example, student Jones might score 50 on a motivational questionnaire prior to class and 67 after – an improvement of 17 points in motivation or “self efficacy.” Similarly, Jones might move from grade level 6.8 to 8.3 in science during the semester, an improvement of 1.5 grade levels. For motivational classes, Dr Hutto spent two days teaching the instructors her methods. While she could control the teaching methods in each class, she was unable to randomly assign students to classes. She also worried about differences in the inherent teaching ability of the instructors for both classes. a. Can this be considered a designed experiment or is it something else? Why or why not? Recall Montgomery’s chapter 1 definition.b. Can this study establish a cause-and-effect link between teaching methods and student achievement?c. In an ideal world, describe at least two changes to a study like this to improve its worth as a designed experiment?