An Educational Researcher Has Designed Two Different Methods for Teaching

question 42

Essay

An educational researcher has designed two different methods for teaching a statistics course and would like to investigate which is more effective.He designs an experiment as follows.He will obtain a group of volunteer statistics students.
Volunteers will be randomly assigned to one of two groups.Group 1 will be taught the statistics course by Anna Clark using method A and group 2 will be taught by Bob Beauman using method B.At the end of the semester,students will all take the same test.Then the scores for the two groups will be compared.Identify the flaw(s)in this experiment and suggest a way of improving the experiment.

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Definitions:

Unit Variable Cost

The cost that varies directly with the production output, altering with the volume of production.

Fixed Costs

Costs that do not change with the level of production or sales activities within a relevant range, such as rent, salaries, and insurance premiums.

Net Income

The total earnings of a company after subtracting all expenses and taxes from total revenue.

Break-even Level

The point at which total costs equal total revenues, resulting in neither profit nor loss.