Case
Applied Data Analysis - Assignment 1
- Course
- Institution
Applied Data Analysis - Assignment 1 For Universiteit Leiden, MSc. Psychology
[Show more]
Seller
Follow
PSYeva
Content preview
Applied Data AnalysisAssignment 1
Excercise 1
A)
Figure 1. Histogram Male Honour
Figure 2. Histogram Ethnic Group
, B) The sample consists of 139 participants. When looking at ethnicity, there are 68 Dutch
participants (48.9%) and 71 Hindu participants (51.1%). The statistics of Male Honour can be
found in Table 1.
Table 1. Descriptives Statistics of Male Honour
N statistic Minimum Maximum Mean Std. Deviation
Male 139 6 22 17.72 3.12
Honour
C)
Table 2. Normality test of Male Honour
Standardized Standardized Kolmogorov Kolmogoro Kolmogorov
Skewness Kurtosis -Smirnov v -Smirnov
Statistic -Smirnov Sig.
df
Male -4.98* 2.50* .16 139 <.001
Honour
*p < 0.05
We computed the skewness and kurtosis for the male honour variable. We computed the
significance of skewness and kurtosis by comparing the resulting z-scores to the expected
values that you would get if skewness and kurtosis did not differ from 0. Thus, when an
absolute value is greater than 1.96 or smaller than -1.96, it is significant at p < 0.05. This was
true for both skewness and kurtosis.
In Table 2 it is shown that the male honour variable contains a large negative number, which
indicates for a pile-up on the right. This denotes negatives skewness. The kurtosis value for
male honour is a significant, positive value. This shows that the actual peak is higher than you
would expect.
We performed a Kolmogorov-Smirnov test to see whether the distribution actually
significantly differ from normality. The score for male honour, D(139) = .16, p < .001 showed
significance.
D)
The scores of skewness and kurtosis indicate that the data is not normally distributed, due to
the significance of the skewness and kurtosis values.
Besides that, the score for the Kolmogorov-Smirnov test was significant for male honour,
which suggests that the variable male honour doesn’t have a normal distribution.
Both these findings denote that the distribution of the variable male honour is not normally
distributed.
E)
We created two boxplots with the variables male honour and ethnicity. We did this in order to
see whether there are differences between the two subgroups of ethnicity, the Dutch and the
Hindu group. Figure 3 shows us that the median of the Dutch group is lower than the Hindu
group, this indicates that the Dutch rated male honour lower and the Hindu rated male honour
higher. Besides that, the middle 50% of the Dutch group is bigger than the Hindu group,
which shows that there is more variety in male honour in the Dutch group than there is in the
Hindu group. In addition, the boxplots show that the highest 25% of the Dutch show less male
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller PSYeva. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.95. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now