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Exercise 16 Understanding Independent Samples t-Test Statistical Technique in Review The independent samples t-test is a parametric statistical technique used to determine significant differences between the scores obtained from two samples or groups. Since the t-test is considered fairly easy to calculate, researchers often use it in determining differences between two groups. The t-test examines the differences between the means of the two groups in a study and adjusts that difference for the variability (computed by the standard error) among the data. When interpreting the results of t-tests, the larger the calculated t ratio, in absolute value, the greater the difference between the two groups. The significance of a t ratio can be determined by comparison with the critical values in a statistical table for the t distribution using the degrees of freedom (df) for the study (see Appendix A Critical Values for Student’s t Distribution at the back of this text). The formula for df for an independent t-test is as follows: df=(numberofsubjectsinsample1+numberofsubjectsinsample2)−2 image Exampledf=(65insample1+67insample2)−2=132−2=130 image The t-test should be conducted only once to examine differences between two groups in a study, because conducting multiple t-tests on study data can result in an inflated Type 1 error rate. A Type I error occurs when the researcher rejects the null hypothesis when it is in actuality true. Researchers need to consider other statistical analysis options for their study data rather than conducting multiple t-tests. However, if multi…

Exercise 16 Understanding Independent Samples t-Test Statistical Technique in Review The independent samples t-test is a parametric statistical technique used to determine significant differences between the scores obtained from two samples or groups. Since the t-test is considered fairly easy to calculate, researchers often use it in determining differences between two groups. The t-test examines the differences between the means of […]

How have these activities helped to promote your professional development? Are you satisfied with your progress toward meeting your objectives? If not, what will you do to ensure you achieve them before the end of your Practicum Experience? As a reminder, you must complete all of your practicum hours on or before Day 5 of Week 11. What challenges or unexpected opportunities have arisen at your practicum site? How has this affected your professional development?

 Professional Development Objectives In Week 1, you developed your practicum professional development objectives. How have your experiences thus far in the practicum contributed to your growth as nurse leader-manager or nurse informaticist? What difficulties, if any, have you experienced, and how might this affect the achievement of your objectives? In this Discussion, you assess your […]

explain how analyses such as the one portrayed by the Feldstein statement may affect decisions by legislative leaders in recommending or positioning national policies (e.g., Congress’ decisions impacting Medicare or Medicaid).

Assignment: Legislation Comparison Grid and Testimony/Advocacy Statement As a nurse, how often have you thought to yourself, If I had anything to do about it, things would work a little differently? Increasingly, nurses are beginning to realize that they do, in fact, have a role and a voice. Many nurses encounter daily experiences that motivate them to […]

Examine information from various sources. Use a minimum of five credible sources for your paper, with three being an academic source from the Rasmussen College Online Library (don’t forget to include in-text citations throughout your paper with paraphrasing or quoting) Make sure to include your APA formatted reference page.

The Myth of Lobbyists Description Part I: Lobbyists have been part of the U.S. Government system since the early 1800s. Lobbyists play an important role in healthcare, as they are advocates for their interest group. In a 4-5 page paper, analyze two examples of how lobbyists affect healthcare legislation. Conclude your paper with your opinion about […]