• Home
  • /
  • Topic
  • /
  • Other
  • /
  • Test
  • /
  • An Examination of Chi Squared As a Statistical Test in a Peer Reviewed Research Article Essay
Verified Document

An Examination Of Chi Squared As A Statistical Test In A Peer Reviewed Research Article Essay

¶ … Chi-Square Statistical Testing in Medical Research The research undertaken by Bryant et al. (1999) was designed to assess if and how post-traumatic stress disorder (PTSD), may be prevented through the use of early intervention cognitive therapy. The research was undertaken with a sample of forty-five civilians who had survived the trauma within the preceding fourteen days and would generally be expected to develop PTSD, as assessed through the acute stress disorder interview based on DSM-IV (Bryant et al., 1999). The sample were divided into three treatment groups receiving different treatments. The results were assessed based on the treatment received, and a post treatment assessment six months later to determine whether or not they had developed PTSD. The assessment was undertaken utilising statistical analysis, providing a method of analysis that could be tested to determine whether or not there was any significant difference.

This research design indicates the research variables. The dependent variable being tested was the outcome; whether or not the individual developed PTSD, which is measured using the clinician administered PTSD scale form 2 (15) (Bryant et al., 1999), with measurements taken immediately following treatment, and six months later. With the provision of a uniform approach to measurement of...

The independent variables were the type of treatment administered, one group was subject to prolonged exposure, the second sample group experienced a combination of prolonged exposure and anxiety management, and the third group received supportive counselling. Therefore, with the need to compare frequent, traditional t-tests would be ineffective (Cresswell, 2013).
The output data obtained from the research included categorical data, based on the group of the individual, as well as numerical data, based on a number of individuals within each group that went on to develop PTSD. Therefore, a paired chi-squared test was a suitable measure to be utilised, facilitating the use of categorical and discreet numerical data (Akerlind, 2005).

The results of the chi-square test were used, this provided a basis for comparing the results across all three groups against the expected outcome (Cresswell, 2013). The results of these chi-squared test indicated that following treatment, there were more people in the supportive counselling group that fulfilled the criteria for PTSD compared to the other two groups; 20% of those in the exposure and management exactly group developed PTSD, 14% of those in the prolonged exposure group, compared to 56% of those in supportive…

Sources used in this document:
Reference

Akerlind, G. S. (2005). Variation and commonality in phenomenographic research methods. Higher Education Research & Development, 24(4), 321-334.

Bryant, R; Sackville, T, Dang, S, Moulds, M, Guthrie, R, (1999), Treating Acute Stress Disorder: Evaluating Cognitive Behaviour Therapy and Supportive Counselling Techniques, American Journal of Psychiatry, 156 (11) 1780-1786

Cresswell, J. W. (2013). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (4th ed.). London: Sage Publications.
Cite this Document:
Copy Bibliography Citation

Related Documents

Business Using Gelso 2006 , Harlow
Words: 16758 Length: 60 Document Type: Term Paper

Researchers have an occasion to further organizational science and to make research practical by producing information that can impact changing organizational forms and circumstances. Pragmatically, academic researchers are not likely to get access to a company that is going through change unless the practitioners believe the research will be helpful (Gibson & Mohrman, 2001). There have been a number of calls to augment the significance and effectiveness of organizational science

Systematic Review and Medication
Words: 6195 Length: 25 Document Type: Capstone Project

Evidence-Based Project Proposal Graduate Project in Nursing The incidence of sexually transmitted diseases has been increasing among adolescents in countries around the world, but there remains a dearth of timely and relevant studies concerning salient differences in knowledge level and attitudes between different cultures and ethnic populations. One common factor that has been consistently demonstrated in improving the effectiveness of treatments for sexually transmitted diseases is promoting adherence to treatment regimens, most

Abuse and Pregnant Women
Words: 13948 Length: 40 Document Type: Capstone Project

Violence against pregnant women is a commonplace phenomenon and this research paper will explain the background of violence against pregnant women. Women undergo different forms of violence for instance, beating, threats, raping and unwilling prostitution. Some years back, it wasn't a big issue as approach towards women was a tad bit different back then. Men were treated as the dominant sex due to their physical strength. So is the case

Overarching Goal of This Study
Words: 18833 Length: 75 Document Type: Essay

Good researchers tend to pull methods out of a tool kit as they are needed" (2006, p. 54). Notwithstanding these criticisms and constraints, though, most social researchers seem to agree that classification by some type of research paradigm is a useful approach based on the need to determine which approach is best suited for a given research enterprise. In this regard, Corby concludes that, "The contested nature of research

Testable Hypothesis. That Residents Spend Less Time
Words: 861 Length: 3 Document Type: Research Paper

testable hypothesis. That residents spend less time teaching ever since promulgation of Duty-Hour Restrictions (DHR) and that this impacts their well-being and perception of patient-care. Question 2 What research subjects or data sources did the researchers use in the study? 164 residents in internal medicine in UCSF. A survey was used that was first tested in a pilot study on noninternal medicine house-staff at the medical center and recent graduates of

Globalization and Innovations in Telecommunications
Words: 18188 Length: 66 Document Type: Thesis

Chapter 2: Review of Related Literature Chapter Introduction This chapter provides a review of the literature concerning hypnosis, Eastern Meditation, Chi Kung, and Nei Kung and how these methods are used to treat various ailments and improve physical and mental functioning. A summary of the review concludes the chapter. Hypnosis In his study, "Cognitive Hypnotherapy in the Management of Pain," Dowd (2001) reports that, "Several theories have been proposed to account for the effect of

Sign Up for Unlimited Study Help

Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.

Get Started Now