Research Design A researcher wants to test the effectiveness of two different co

Question

Research Design

A researcher wants to test the effectiveness of two different computer-based instructional methods on teaching a unit on weather in seventh-grade science. The researcher finds a teacher who will permit three of his classes to participate: Two classes use the computer-based instruction, and the third receives conventional classroom instruction. The researcher administers a pretest to all students, each class has a different method of instruction, and then a post test is administered.

a. Specify the design of this study and represent it using the notation system used in this chapter.

b. What statistics would you choose to analyze these data?

Explanation / Answer

A) IN THIS QUESTION THE DESIGN WILL BE THAT THE 3 CLASSES NEED TO BE TEST ON THE UNDERSTANDING OF THE INSTRUCTION ON CHAPTER WEATHER AND THE UNDERSTANDING CAN BE TESTED BY TAKING AN EXAM ON THE SAME TOPIC FOR ALL THE 3 CLASSES

B) THE STATICTICS TO BE ANALYSED FOR ALL THE 3 GROUPS WILL BE THE MARKS SCORED BY STUDENTS IN THE 3 CLASSES AND THEN CLASS WITH THE HIGHEST MEAN CAN BE SAID AS THE CLASS WITH GOOF UNDERSTANDING AND THE METHOS USED FOR THAT CLASS IN BETTER THAN THE OTHER TWO.

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