Week 4 Handout: Chi Square Findings And Test Overview
Week 4 Handout: Chi-Square Findings The chi square test for independence is used to determine whether there is a relationship between the two variables that are categorical in the level of measurement. In this case, the variables are: employment level and treatment condition. It tests whether there is a difference between groups. The research question for the study is: Is there a relationship between the independent variable, treatment, and the dependent variable, employment level? In other words, is there a difference in the number of participants who are not employed, employed part-time and employed full-time in the program and the control group (i.e., waitlist group)?
The hypotheses are: H0 (The null hypothesis): There is no difference in the proportions of individuals in the three employment categories between the treatment group and the waitlist group. In other words, the frequency distribution for variable 2 (employment) has the same proportions for both categories of variable 1 (program participation). It is the null hypothesis that is actually tested by the statistic. A chi square statistic that is found to be statistically significant, (e.g. p The alternative hypothesis states that there is a difference.
It would allow us to say that it appears that the treatment (voc rehab program) is effective in increasing the employment status of participants. Assume that the data has been collected to answer the above research question. Someone has entered the data into SPSS. A chi-square test was conducted, and you were given the following SPSS output data: 7Worksheet: Dissecting a Theory and Its Application to a Case Study Most theories can be dissected and analyzed. All theories will tell you something about their focus or unit of analysis. A theory will identify its major or key concepts. It will also point to the definition of the problem and its cause. This then guides how the social worker assesses and intervenes, because the theory will also articulate the role of the social worker and how change occurs. Basic Assumptions of the Theory Directions: For each section, respond in 2 to 3 sentences to the following prompts. Where relevant, provide citations to support your claims.
Name of theory The name of the theory is system theory. It shows the relationship of a whole thing with its components. Name of theorist The theorist is Ludwig Von Bertalanffy. He came up with the theory from 1940 to 1950. He made the first publishment of the approach, which outlined the fundamental laws of the system.
What are the major assumptions of the theory? The primary assumption of the system is that complex systems are comprised of subsystems, and the subsystems determine the operation of the complex system. The interaction between the smaller systems makes up the complex system. What are the theory’s key concepts? The critical concept of system theory is that a whole thing does not exist independently, but it summits its parts. It shows a comparative study of smaller systems concerning the other larger systems that are more complex. What is the theory’s focus or unit of analysis? A system theory analyses the perception of seeing phenomena as a whole thing but not the summation of its parts. It focuses on the union and the relationship of these parts to constitute one whole thing. What is the theory’s overall explanation for the cause of problems? System theory explains that a problem brings about the cause of a problem in the whole system in one part or component of the system as the parts. This is because it is the interaction of these small parts or subsystems that result in the existence and well-being of the whole thing. Application to a Case Study