Statistics for Nursing Research Workbook exercise 12

1.Discuss the differences between parametric and nonparametric statistical techniques. Provide an example of a parametric statistical technique and a nonparametric statistical technique applying the algorithm in Figure 12-1.

2.What statistical technique was probably conducted for a study focused on examining associations or relationships that had variables measured at the ordinal level and included on group? Provide a rationale.

3.What statistical technique was probably conducted for a study focused on examining differences that had variables measured at the ratio level and included three independent groups (intervention, placebo, and control)? Provide a rationale.

4.Harrington (2013) examined relationships among physical activities, weight, and sleep duration (measured in minutes per night) in a sample of 8-year-old children. What inferential statistical technique did Harrington conduct in analyzing her study data? Provide a rationale.

Source: Harrington, S. A. (2013). Relationships of objectively measured physical activity and sleep with BMI and academic outcomes in 8-year-old children. Applied Nursing Research, 26(2), 63-70.

5.Smith and colleagues (2014, p. 68) developed the following question to guide their study: "What are the relationships among the variables of perceived stress, sleep quality, loneliness, and self-esteem among obese young adult women?" The variables measured with multi-item Likert scales, and the data were considered at the interval level. What inferential statistical technique did these researchers conduct to analyze their study data? Provide a rationale.

Source: Smith, M. J., Theeke, L., Culp, S., Clark, K., & Pinto, S. (2014). Psychological variables and self-rated health in young adult obese women. Applied Nursing Research, 27(1, 67-71.