Statistical Significance and Meaningfulness

Course: Quantitative Reasoning & Analysis
Required Readings:
 Frankfort-Nachmias, C., & Leon-Guerrero, A. (2015). Social statistics for a diverse society (7th ed.).
Thousand Oaks, CA: Sage Publications. Chapter 9, “Testing Hypothesis” (pp. 267–277)
 Wagner, W. E. (2016). Using IBM® SPSS® statistics for research methods and social science statistics (6th ed.). Thousand Oaks, CA: Sage Publications Chapter 6, “Testing Hypotheses Using Means and Cross-Tabulation”
 Warner, R. M. (2012). Applied statistics from bivariate through multivariate techniques (2nd ed.). Thousand Oaks, CA: Sage Publications. Chapter 3, “Statistical Significance Testing” (pp. 81– 124)
 Magnusson, K. (n.d.). Welcome to Kristoffer Magnusson’s blog about R, Statistics, Psychology, Open Science, Data Visualization [blog]. Retrieved from http://rpsychologist.com/index.html
 American Statistical Association (2016). American Statistical Association Releases Statement on Statistical Significance and P-Values. Retrieved from http://www.amstat.org/newsroom/pressreleases/P- ValueStatement.pdf (See attachment)

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To prepare for this Discussion: Review the Learning Resources related to hypothesis testing, meaningfulness, and statistical significance. Review Magnusson’s web blog found in the Learning Resources to further your visualization and understanding of statistical power and significance testing. Review the American Statistical Association’s press release and consider the misconceptions and misuse of p-values.<br>Consider the scenario: A research paper claims a meaningful contribution to the literature based on finding statistically significant relationships between predictor and response variables. In the footnotes, you see the following statement, “given this research was exploratory in nature, traditional levels of significance to reject the null hypotheses were relaxed to the .10 level.”

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Discussion Question:
Provide your response to the scenario in which you critically evaluate this footnote. As a reader/reviewer, what response would you provide to the authors about this footnote?
Be sure to support your Main Post and Response Post with reference to the week’s Learning Resources and other scholarly evidence in APA Style. Also, please ensure to utilize the grading rubric for this assignment (attached). You can also use up to two sources if needed.

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