Introduction

In 2013, students of the Statistics class at FSEV
UK were asked to invite their friends to
participate in this survey.

• The data file (responses.csv) consists of 1010 rows and 150 columns (139
  integer and 11 categorical).
• For convenience, the original variable names were shortened in the
  data file. See the columns.csv file if you want to match the data with the original names.
• The data contain missing values.
• The survey was presented to participants in both electronic and written form.
• The original questionnaire was in Slovak language and was later translated
  into English.
• All participants were of Slovakian nationality, aged between 15-30.

The variables can be split into the following groups:

• Music preferences (19 items)
• Movie preferences (12 items)
• Hobbies & interests (32 items)
• Phobias (10 items)
• Health habits (3 items)
• Personality traits, views on life, & opinions (57 items)
• Spending habits (7 items)
• Demographics (10 items)

Research questions

Many different techniques can be used to answer many questions, e.g.

• Clustering: Given the music preferences, do people make up
  any clusters of similar behavior?
• Hypothesis testing: Do women fear certain phenomena
  significantly more than men? Do the left handed people have different
  interests than right handed?
• Predictive modeling: Can we predict spending habits of a person
  from his/her interests and movie or music preferences?
• Dimension reduction: Can we describe a large number of human
  interests by a smaller number of latent concepts?
• Correlation analysis: Are there any connections between music and
  movie preferences?
• Visualization: How to effectively visualize a lot of variables
  in order to gain some meaningful insights from the data?
• (Multivariate) Outlier detection: Small number of participants often cheats and randomly answers the questions. Can you identify them? Hint: Local outlier factor may help.
• Missing values analysis: Are there any patterns in missing responses? What is the optimal way of imputing the values in surveys?
• Recommendations: If some of user's interests are known, can we predict the other? Or, if we know what a person listen, can we predict which kind of movies he/she might like?

Past research

• (in slovak) Sleziak, P. - Sabo, M.: Gender differences in the prevalence of specific phobias. Forum Statisticum Slovacum. 2014, Vol. 10, No. 6. [Differences (gender + whether people lived in village/town) in the prevalence of phobias.]

• Sabo, Miroslav. Multivariate Statistical Methods with Applications. Diss. Slovak University of Technology in Bratislava, 2014. [Clustering of variables (music preferences, movie preferences, phobias) + Clustering of people w.r.t. their interests.]

Questionnaire

MUSIC PREFERENCES

1. I enjoy listening to music.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
2. I prefer.: Slow paced music 1-2-3-4-5 Fast paced music (integer)
3. Dance, Disco, Funk: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
4. Folk music: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
5. Country: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
6. Classical: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
7. Musicals: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
8. Pop: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
9. Rock: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
10. Metal, Hard rock: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
11. Punk: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
12. Hip hop, Rap: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
13. Reggae, Ska: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
14. Swing, Jazz: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
15. Rock n Roll: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
16. Alternative music: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
17. Latin: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
18. Techno, Trance: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
19. Opera: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)

MOVIE PREFERENCES

20. I really enjoy watching movies.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
21. Horror movies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
22. Thriller movies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
23. Comedies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
24. Romantic movies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
25. Sci-fi movies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
26. War movies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
27. Tales: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
28. Cartoons: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
29. Documentaries: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
30. Western movies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)
31. Action movies: Don't enjoy at all 1-2-3-4-5 Enjoy very much (integer)

HOBBIES & INTERESTS

32. History: Not interested 1-2-3-4-5 Very interested (integer)
33. Psychology: Not interested 1-2-3-4-5 Very interested (integer)
34. Politics: Not interested 1-2-3-4-5 Very interested (integer)
35. Mathematics: Not interested 1-2-3-4-5 Very interested (integer)
36. Physics: Not interested 1-2-3-4-5 Very interested (integer)
37. Internet: Not interested 1-2-3-4-5 Very interested (integer)
38. PC Software, Hardware: Not interested 1-2-3-4-5 Very interested (integer)
39. Economy, Management: Not interested 1-2-3-4-5 Very interested (integer)
40. Biology: Not interested 1-2-3-4-5 Very interested (integer)
41. Chemistry: Not interested 1-2-3-4-5 Very interested (integer)
42. Poetry reading: Not interested 1-2-3-4-5 Very interested (integer)
43. Geography: Not interested 1-2-3-4-5 Very interested (integer)
44. Foreign languages: Not interested 1-2-3-4-5 Very interested (integer)
45. Medicine: Not interested 1-2-3-4-5 Very interested (integer)
46. Law: Not interested 1-2-3-4-5 Very interested (integer)
47. Cars: Not interested 1-2-3-4-5 Very interested (integer)
48. Art: Not interested 1-2-3-4-5 Very interested (integer)
49. Religion: Not interested 1-2-3-4-5 Very interested (integer)
50. Outdoor activities: Not interested 1-2-3-4-5 Very interested (integer)
51. Dancing: Not interested 1-2-3-4-5 Very interested (integer)
52. Playing musical instruments: Not interested 1-2-3-4-5 Very interested (integer)
53. Poetry writing: Not interested 1-2-3-4-5 Very interested (integer)
54. Sport and leisure activities: Not interested 1-2-3-4-5 Very interested (integer)
55. Sport at competitive level: Not interested 1-2-3-4-5 Very interested (integer)
56. Gardening: Not interested 1-2-3-4-5 Very interested (integer)
57. Celebrity lifestyle: Not interested 1-2-3-4-5 Very interested (integer)
58. Shopping: Not interested 1-2-3-4-5 Very interested (integer)
59. Science and technology: Not interested 1-2-3-4-5 Very interested (integer)
60. Theatre: Not interested 1-2-3-4-5 Very interested (integer)
61. Socializing: Not interested 1-2-3-4-5 Very interested (integer)
62. Adrenaline sports: Not interested 1-2-3-4-5 Very interested (integer)
63. Pets: Not interested 1-2-3-4-5 Very interested (integer)

PHOBIAS

64. Flying: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
65. Thunder, lightning: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
66. Darkness: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
67. Heights: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
68. Spiders: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
69. Snakes: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
70. Rats, mice: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
71. Ageing: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
72. Dangerous dogs: Not afraid at all 1-2-3-4-5 Very afraid of (integer)
73. Public speaking: Not afraid at all 1-2-3-4-5 Very afraid of (integer)

HEALTH HABITS

74. Smoking habits: Never smoked - Tried smoking - Former smoker - Current smoker (categorical)
75. Drinking: Never - Social drinker - Drink a lot (categorical)
76. I live a very healthy lifestyle.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)

PERSONALITY TRAITS, VIEWS ON LIFE & OPINIONS

77. I take notice of what goes on around me.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
78. I try to do tasks as soon as possible and not leave them until last minute.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
79. I always make a list so I don't forget anything.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
80. I often study or work even in my spare time.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
81. I look at things from all different angles before I go ahead.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
82. I believe that bad people will suffer one day and good people will be rewarded.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
83. I am reliable at work and always complete all tasks given to me.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
84. I always keep my promises.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
85. I can fall for someone very quickly and then completely lose interest.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
86. I would rather have lots of friends than lots of money.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
87. I always try to be the funniest one.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
88. I can be two faced sometimes.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
89. I damaged things in the past when angry.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
90. I take my time to make decisions.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
91. I always try to vote in elections.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
92. I often think about and regret the decisions I make.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
93. I can tell if people listen to me or not when I talk to them.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
94. I am a hypochondriac.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
95. I am emphatetic person.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
96. I eat because I have to. I don't enjoy food and eat as fast as I can.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
97. I try to give as much as I can to other people at Christmas.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
98. I don't like seeing animals suffering.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
99. I look after things I have borrowed from others.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
100. I feel lonely in life.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
101. I used to cheat at school.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
102. I worry about my health.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
103. I wish I could change the past because of the things I have done.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
104. I believe in God.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
105. I always have good dreams.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
106. I always give to charity.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
107. I have lots of friends.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
108. Timekeeping.: I am often early. - I am always on time. - I am often running late. (categorical)
109. Do you lie to others?: Never. - Only to avoid hurting someone. - Sometimes. - Everytime it suits me. (categorical)
110. I am very patient.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
111. I can quickly adapt to a new environment.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
112. My moods change quickly.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
113. I am well mannered and I look after my appearance.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
114. I enjoy meeting new people.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
115. I always let other people know about my achievements.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
116. I think carefully before answering any important letters.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
117. I enjoy childrens' company.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
118. I am not afraid to give my opinion if I feel strongly about something.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
119. I can get angry very easily.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
120. I always make sure I connect with the right people.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
121. I have to be well prepared before public speaking.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
122. I will find a fault in myself if people don't like me.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
123. I cry when I feel down or things don't go the right way.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
124. I am 100% happy with my life.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
125. I am always full of life and energy.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
126. I prefer big dangerous dogs to smaller, calmer dogs.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
127. I believe all my personality traits are positive.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
128. If I find something the doesn't belong to me I will hand it in.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
129. I find it very difficult to get up in the morning.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
130. I have many different hobbies and interests.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
131. I always listen to my parents' advice.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
132. I enjoy taking part in surveys.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
133. How much time do you spend online?: No time at all - Less than an hour a day - Few hours a day - Most of the day (categorical)

SPENDING HABITS

134. I save all the money I can.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
135. I enjoy going to large shopping centres.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
136. I prefer branded clothing to non branded.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
137. I spend a lot of money on partying and socializing.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
138. I spend a lot of money on my appearance.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
139. I spend a lot of money on gadgets.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)
140. I will hapilly pay more money for good, quality or healthy food.: Strongly disagree 1-2-3-4-5 Strongly agree (integer)

DEMOGRAPHICS

141. Age: (integer)
142. Height: (integer)
143. Weight: (integer)
144. How many siblings do you have?: (integer)
145. Gender: Female - Male (categorical)
146. I am: Left handed - Right handed (categorical)
147. Highest education achieved: Currently a Primary school pupil - Primary school - Secondary school - College/Bachelor degree (categorical)
148. I am the only child: No - Yes (categorical)
149. I spent most of my childhood in a: City - village (categorical)
150. I lived most of my childhood in a: house/bungalow - block of flats (categorical)