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Feb 9th, 2017
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PART 1

  • 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).

Directions:

In an essay of 250-500 words, use the scenario presented in part 1a, above, to answer the following questions:

  1. What statistical test was used in Nelson et al., (2010)?
  2. 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?)
  3. What was the research question? How did the statistical test address and answer the research question?
  4. How did the authors interpret the results of this study?

ProQuestDocuments-2015-04-30-1.pdf

PART 2

Review the SPSS output file which reports the results of the correlation to see if there is a correlation between the cost of beer and the number of calories it contains or the cost of beer and the volume of alcohol it contains. Answer the following questions based on your observations of the SPSS output file:

Based on the correlation coefficients (r-values) that were computed and their statistical significance, what conclusions do you draw regarding

  1. The researcher's question of correlation between the cost of beer and the number of calories it contains?
  2. The researcher's question of correlation between the cost of beer and the volume of alcohol it contains?
SPSS FILE 2.docx



Tutor Answer

(Top Tutor) Daniel C.
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School: University of Virginia
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Running Head: STATISTICS

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Statistics

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STATISTICS

2
Part 1

1. Type of statistical test used

The type of statistical test which was used in Nelson et al., (2010) was the Pearson
correlational test.

2. Did the authors use the correct statistical test?

Yes, the authors used the correct statistical test. Pearson correlational test is used to show an
association between two continuous variables. The authors were aiming at determining the
relationship between two continuous variables which were praise notes to the students and the
office disciplined referral. From the book, it shows clearly that the authors found out the
relationship between the two variables in that the number of office disciplined referral reduced as
the number of praise notes to the students increased. Therefore, the Pearson correlational test was
selected and taken...

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