Why is the frequent use of chi-square in social work research
both good and bad? How...
Why is the frequent use of chi-square in social work research
both good and bad? How is the test particularly well suited to
social work research?
Solutions
Expert Solution
Answer:
The Chi Square measurement is generally utilized for testing
connections between absolute factors.
The invalid theory of the Chi-Square test is that no
relationship exists on the straight out factors in the populace;
they are free.
A model research question that could be addressed utilizing a
Chi-Square investigation would be:
Is there a noteworthy connection between voter purpose and
ideological group participation?
Chi square test inform us regarding relationship of Two
traits.
It is terrible in light of the fact that it doesn't give clear
Idea and does not instruct us to how much degree they are
related.
It just let us know are they related or not. Chi-Square worth
is determined, it is very delicate to test size – when the example
size is excessively huge (~500), practically any little contrast
will show up factually huge.
It is likewise touchy to the dissemination inside the cells,
and SPSS gives a notice message if cells have less than 5
cases.
This can be tended to by continually utilizing straight out
factors with a set number of classifications (e.g., by
consolidating classes if important to deliver a littler
table).
The test is particularly appropriate for social research on the
grounds that in social research we need to for the most part test
properties freedom.
For instance father's salary influence youngsters instruction
or not. This is the main test which discussion about
qualities.
So that is the means by which test perticularly appropriate for
social research. You can take such a significant number of guides
to outline this.
Chi Square Test
We will now use Excel to run an example of a chi square test.
Chi square test is checking the independence of two variables. Our
example will test if taking hormonal pills and being overweight are
related. We will test the independence on 200 random patients.
Thus, N=200. They will be divided first into two groups, those who
take hormonal pills and those who do not. Second, they will be
divided into three groups based on weight,...
Problem Set 1: Chi Square Test of Goodness of
Fit
Research Scenario: A school social worker at a
middle school wants to examine whether there is a difference in the
number of children who have experienced bullying in different
grades (6th – 8th). Assume the total number
of children in each grade is about equal. He administers a survey
on which students self-report whether or not they have been
bullied. He is only interested in the number of “yes” responses...
2. Use the Chi-Square test procedure to solve the following
research question: A psychologist seeks to examine whether certain
mental health issues are more prevalent in a sample of violent
criminal offenders (1,000) compared to the average population.
Observed
Expected
Anxiety disorder
152
146 (14.6 x 1000)
Mood disorder
112
80 (8.0 x 1000)
Personality disorder
195
90 (9.0 x 1000)
Schizophrenia
75
15 (1.5 x 1000)
None
521
669 (66.9 x 1000)
2a. Calculate and provide the chi-square statistic...
Provide a simple research example to illustrate how chi-square
could be used in an analysis.
It must discuss how the frequency distribution should be set
up.
For example, you have to make categories of the data in order to
run a chi-square.
Assignment #7: One-sample Chi-Square
Directions: Use the Chi-Square option in the Nonparametric Tests
menu to answer the questions based on the following scenario.
(Assume a level of significance of .05 and use information from the
scenario to determine the expected frequencies for each
category)
During the analysis of the district data, it was determined that
one high school had substantially higher Graduate Exit Exam scores
than the state average and the averages of high schools in the
surrounding districts. To...