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A researcher wishes to know whether a newly developed teaching method has an effect on 5th...

A researcher wishes to know whether a newly developed teaching method has an effect on 5th grading reading scores. A sample of 5th graders are given a standardized test at the beginning of the school year and retested at the end of the school year.

7. What is the researcher’s hypothesis?

________________________________________________________________________

8. What is the null hypothesis?

________________________________________________________________________

9. What is the independent variable? _______________________________________

10. What is the dependent variable? ________________________________________

11. What is the name of the “research design? _______________________________

12. What is the appropriate hypothesis test to analyze the data from this study?

___________________________________________________________

Math   Statistics-And-Probability   
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Answer #1

7) Researcher’s hypothesis:

where is the mean score obtained at the begining of the school year.

is the mean score obtained at the end of the school year.

8) NULL HYPOTHESIS H0:

9) Independent Variable is teaching method

10) Dependent variable is reading scores.

11) This research design is experimental study design .

12 ) If population standard deviation is unknown then independent two samples t test .

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