This is a two part assignment.
Statistical Significance and Meaningfulness
It is important for you to understand that just because a hypothesis test indicates a relationship exists between an intervention and an outcome, there is a difference between groups, or there is a correlation between two constructs, it does not always provide a default measure for its importance. Although relationships are significant, they can be very minute relationships, very small differences, or very weak correlations. In the end, we need to ask whether the relationships or differences observed are large enough that we should make some practical change in policy or practice.
For the first part of this assignment , you will explore statistical significance and meaningfulness.
To prepare for this Assignment, :
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.
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.”
BY DAY 3
Post 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.
By Day 5
Evaluating Significance of Findings
For this Assignment, you will examine statistical significance and meaningfulness based on sample statements.
To prepare for this Assignment:
Review the Week 5 Scenarios found in this week’s Learning Resources and select two of the four scenarios for this Assignment.
For additional support, review the Skill Builder: Evaluating P Values and the Skill Builder: Statistical Power, which you can find by navigating back to your Blackboard Course Home Page. From there, locate the Skill Builder link in the left navigation pane.
For this Assignment:
Critically evaluate the two scenarios you selected based upon the following points:
Critically evaluate the sample size.
Critically evaluate the statements for meaningfulness.
Critically evaluate the statements for statistical significance.
Based on your evaluation, provide an explanation of the implications for social change.
Use proper APA format and citations, and referencing.
