Influence of Music on Preoperative Anxiety and Physiologic Parameters

Influence of Music on Preoperative Anxiety and Physiologic Parameters

Critique Questions

1. In this study, the authors used several independent and pairwise comparisons. Give an example of independent comparisons in the study. Give your rationale.

An example of an independent comparison in the study is the difference between the experimental and control groups based on STAI scores. This is a pairwise comparison considering that each of the comparisons looks at the difference between the means. The comparison is based on the mean of the control group and the mean of the experimental group.

2. What were statistical techniques calculated to describe characteristics of the participants (i.e., age, civil status, education, history of previous surgery, and types of surgery)? (Ignore chi-square and Fisher’s exact test) Were these techniques appropriate? Give rationale.

The study incorporated descriptive statistics such as mean, standard deviation, and frequencies. These techniques were important in analyzing the descriptive data that was collected in the study. The Mean provides an understanding of the average based on continuous data. The frequencies provide a focus on the categorical data that has been included in the study.

3. What were the independent and dependent outcome variables between the control group and the experimental group in the study?

The independent variable was music type, while the dependent variables included anxiety and physiologic parameters.

4. What was inferential statistical technique calculated to examine the difference of anxiety level and physiologic parameters between the control group and the experimental group? Is this test appropriate? Provide a rationale.

A paired t-test was used to examine the differences in anxiety level and physiologic parameters between the control and the experimental group. Paired samples t-test present a better platform in understanding the different level in which individuals are likely to control their anxiety levels.

5. State the null hypothesis (H₀) and the alternative hypothesis (H₁) for anxiety level (STAI) before and after music intervention in the experimental group. Was this hypothesis accepted or rejected.  Give rationale.

The Null hypothesis (Ho): There is no statistically significant difference between the two groups based on STAI scores.

(Ha): There is no statistically significant difference between the two groups based on STAI scores.

The findings from the analysis conducted found that there was no statistically significant difference between the two groups based on STAI scores.

6. Was there a significant difference in respiratory rate before and after music intervention in the experimental group? What does the result indicate?

The findings from the analysis showed that there was no statistically significant difference in the respiratory based on music intervention (p = 0.8579, p>0.05). The results indicate that there is insufficient evidence at 95% to conclude that there is a significant difference in respiratory rate before and after the intervention.

7. State the null hypothesis (H₀) and the alternative hypothesis (H₁) for anxiety level (STAI) between the control group and experimental group after music intervention. Was this hypothesis accepted or rejected.  Give rationale.

The Null hypothesis (Ho): There is no statistically significant difference in anxiety and physiologic parameters based on the type of music.

The alternative hypothesis (Ha): There is a statistically significant difference in anxiety and physiologic parameters based on the type of music.

8. What are the independent t-test values for physiologic parameters (SBP, DBP, pulse rate, and respiratory rate) between the experimental group and control group groups after music intervention? Are these results significant?  Provide a rationale for your answer.

SBP =  6.45

DBP =  2.8

Pulse rate = 7.32

Respiratory rate =  1.36

All of the results were significant except for the respiratory rate, which has a p-value = 0.1747, which shows that the results are not significant.

9. Discuss the meaning of the results regarding the anxiety level for this study. What is the clinical importance of this result?  Explain your answer.

The findings from the study showed that there was a significant difference in anxiety levels across the different music groups included in the study. The findings have shown that music helps in relaxation among women undergoing gynecologic surgery.

10. Discuss the meaning of the results regarding physiologic parameters for this study. What is the clinical importance of the result?

The findings from the study revealed that there was no significant difference in any of the physiological measures that were included in the study based on the STAI scores. This means that music does not help in influencing individual physiologic parameters.

Reference

Labrague, L. J., & McEnroe-Petitte, D. M. (2016). Influence of music on preoperative anxiety and physiologic parameters in women undergoing gynecologic surgery. Clinical nursing research, 25(2), 157-173.