T -Tests and Anova in Clinical Practice, Essay Example

Abstract

This review will examine the article written by Jadcherlaet al.(2010).  This review will answer six questions that will be applied as headings.  The questions will be answered with regards to the purpose of the study, the origins of the data and the characteristics of the sample. The perspective of Brown (2009) will be applied for the definition of inferential statistics and their application in large research samples.

Who comprised the sample in this study?

The sample that was examined in this study was infants who participated in a retrospective study. The number of infants was one hundred and eighty six (N= 186) (Jadcherla et al., 2010).

What were the sources of data?

The sources of data that were applied were derived from the following sources:

1. The first source of data was the morbidity qualities that are founded upon the gestational development at birth and the demographic information of the infants (Jadcherla et al., 2010, p. 203).
2. The second source of information was derived from the attainment of alimentary milestones that were founded upon post menstrual development (Jadcherla et al., 2010, p. 205).
3. The third sources of data were founded upon the attainment of the maximum oral alimentation and the co- morbidity limits for pone hundred and severity five of the infants (N= 175) (Jadcherla et al., 2010, p. 205).
4. The fourth source of data was derived from the postmenstrual development and the point of maximum force feeding for one hundred and eighteen of the infants (N =118). In addition the data sources was derived from the maximum oral alimentation milestones for one hundred and thirty one (N= 131) of the infants who participated in the study (Jadcherla et al., 2010, p. 205).

What inferential statistic was used to analyze the data collected?

The variables that were discrete in quality were evaluated in comparison with three groups for the ?² evaluation (Chi- square test).  In addition the non- paired t – tests or the Wilcoxson index sum tests were applied in order to evaluate the intergroup distinctions inside of the contiguous result variables.  Analysis applying multivariates was used in order to review the variables that were confounding in comparison to the alimentary milestones that implemented incremental logistic regression and linear regression for the classified and contiguous variables from a respective perspective.  The data was calibrated for multiple examinations by the application of the Tukey- Kramer method (Jadcherla et al., 2010, p. 202).

What were the findings?

The findings in this research were that the infants that were less than twenty eight weeks of gestational age have substantial alimentary deterrence with regards to maximal force feeding and oral alimentation in addition to extended LOS. The infants who were aged more than twenty eight weeks gestational age reached effective alimentary milestones by the application of identical PMA. The particular co- morbidities that were aero- digestive in the quality substantially influenced the oral alimentary milestone. Deterrence in attaining the maximum force feeding and the maximal oral alimentary milestones inferred deterrence with regards to the production of control and the administration of the foregut mobility (Jadcherla et al., 2010, p. 201).

How did an inferential statistic bring value to the research study?

The inferential statistic brought value to the statistical analysis. The inferential statistics brought this value to the research with regards to the ability of comparing the characteristics of two distinct groups and analyzing the differences between them. The inferential statistics operate best when a large sample is receiving analysis. In the event that a population sample was only composed of six respondents (N= 6), six from the experimental group and six from the control group, the population of the participants would be so sparse that it would not facilitate confidence that there was a distinction between the two groups (Brown, 2009).

Did it increase the study’s application to evidence based perspective?

Considering that the samples had a considerable size, (N= 186),(N= 175),(N= 118) and (N= 131), the outcomes became more pronounced with the application of inferential statistics. The application of inferential statistics did increase the study’s application to evidence based practice due to the attribute that it is difficult to day that a sample of one hundred and eighty six babies are reaching feeding milestones sooner than another group of one hundred and eighty six babies at random. The variations that are random should be equivalent in both groups, considering that both groups are sufficiently sized (Brown, 2009).

References

Brown, S. (2009). Evidence – based nursing: The research practice connection. Sudbury, MA: Jones and Bartlett Publishers.

Jadcherla, S. R., Wang, M. Vijayapal, A. S. and Leather, S. R. (2010) Impact of prematurity and co- morbidities on feeding milestones in neonates: A retrospective study. Journal of Perinatology, 30: 201- 208.