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Statistical Testing and Data Analysis

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Read selected sections of Nelson, J. A. P., Young, B. J., Young, E. J., & Cox, G. (2010). Using teacher-written praise notes to promote a positive environment in a middle school. Preventing School Failure, 54(2), 119-125. You should read the Abstract, Introduction, Participants and Setting, Procedure, Measures (paragraph 1 only), Data Analysis (paragraph 1 only), Results (paragraph 1 only), and Discussion (paragraph 1 and 2 only).

Use the scenario presented in part 1a, above, to answer the following questions:

What statistical test was used in Nelson et al., (2010)?
Did the authors use the correct statistical test? In other words, what was their rationale for using this test (i.e., were the variables discrete or continuous and was the test appropriate for this type of data?)
What was the research question? How did the statistical test address and answer the research question?
How did the authors interpret the results of this study?

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The solution provides step by step method for the calculation of test statistic for significance of correlation coefficient. Formula for the calculation and Interpretations of the results are also included.

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2. Assignment: SPSS or Excel Analysis

â?¢ Resources: Pre-Post Test Score Data Set & Sample Results Report attached zip file

â?¢ Review the Sample Results Report.

â?¢ Access the Pre-Post Test Score Data Set. This is the data for Study #2 introduced in the Statistical Choices worksheet in the zip file.

â?¢ Analyze the data using SPSS or Excel based on the purpose of the study.

â?¢ Copy and paste the results into a Microsoft® Word document.

â?¢ Prepare a 350- to 700-word report presenting your results.

o Include the most appropriate descriptive displays (tables and/or figures) and statistics to describe the collected data and to determine the relationship between the variables.

o Leverage the Sample Results Report and ensure your paper is formatted in correct APA style.

â?¢ Submit the SPSS or Excel results and the report

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