subject
Physics, 21.01.2022 07:40 Ashleymsmith

2. A public school teacher is completing a research project for her master’s thesis that involves assessing the benefits of using smart boards in the classrooms. She believes smart boards will facilitate learning and lead to higher grades. In order to support her research project, her principal gives her permission to determine who will receive a new smart board and who will stay on a waiting list. She randomly determines which classes will receive smart boards and then compares the average scores of students in each group on a standardized test appropriate for their respective grade level. •
o What is her independent variable in this study? (1 point)
o What is her dependent variable? (1 point)
o What is her hypothesis? (1 point)
o Who is in her experimental group? Her control group? (2 points)
o In her analysis, she also checked to see if there were significant differences in the performance of students in each of the different grade levels. If students were all performing at their best, their averages on the grade-specific tests should all be the same. However, the variable of ‘grade level’ is not a true independent variable in this analysis. Why not? (1 point)

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
question
Physics, 22.06.2019 05:10
A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
Answers: 2
question
Physics, 22.06.2019 21:20
An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.
Answers: 3
question
Physics, 23.06.2019 04:10
Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.
Answers: 2
You know the right answer?
2. A public school teacher is completing a research project for her master’s thesis that involves as...
Questions
question
Mathematics, 08.10.2020 23:01
question
Social Studies, 08.10.2020 23:01
question
Mathematics, 08.10.2020 23:01
question
History, 08.10.2020 23:01
question
History, 08.10.2020 23:01
Questions on the website: 13722363