11-C1 . According to Milton Rokeach, there is a positive correlation between dog
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Question
11-C1. According to Milton Rokeach, there is a positive correlation between dogmatism and anxiety. Dogmatism is defined as a rigidity of attitude that produces a closed belief system (or a closed mind) and a general attitude of intolerance. In the following study, dogmatism was measured on the basis of the Rokeach D Scale (Rokeach, 1960), and anxiety is here measured on the 30-item Welch Anxiety Scale, an adaptation taken from the MMPI (Welch, 1952). A random sample of 30 undergraduate students from a large western university was selected and given both the D Scale and the Welch Anxiety test. The results were as follows:
Subject D Scale Anxiety Test
1 180 60
2 174 64
3 150 45
4 222 102
5 120 40
6 195 75
7 165 45
8. 150 30
9 245 145
10 200 125
11 194 80
12 285 80
13 200 74
14 180 60
15 210 74
16 193 73
17 188 68
18 205 68
19 185 80
20 197 75
21 193 73
22 196 76
23 194 60
24 180 81
25 186 50
26 201 66
27 194 75
28 165 73
29 195 74
30 170 50
1. State/write out the null hypothesis using appropriate IV and DV terms.
2. Compute and report SPSS results that includes the linear correlation between dogmatism and anxiety.
3. Is there a significant correlation between dogmatism and anxiety?
Explanation / Answer
we cannot answer this using paid softwares such as spss. However , we shall answer this using open source statistical package R. The complete R snippet is as follows :
# read the data into R dataframe
data.df<- read.csv("C:\Users\586645\Downloads\Chegg\dscale.csv",header=TRUE)
str(data.df)
## correlation
cor(data.df$D.Scale,data.df$Anxiety.test)
## correlation test
cor.test(data.df$D.Scale,data.df$Anxiety.test)
#########################################################
The results are
> cor(data.df$D.Scale,data.df$Anxiety.test)
[1] 0.6587552
> cor.test(data.df$D.Scale,data.df$Anxiety.test)
Pearson's product-moment correlation
data: data.df$D.Scale and data.df$Anxiety.test
t = 4.6332, df = 28, p-value = 7.557e-05 ## as the p value is less than 0.05 , hence we can conclude that there is a signigicant correlation between the 2 variables
alternative hypothesis: true correlation is not equal to 0
95 percent confidence interval:
0.3913694 0.8235677
sample estimates:
cor
0.6587552
Null : The correlation between dscale and anxiety test is zero
Alternate : The correlation between dscale and anxiety test is not zero
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