Introduction to the SPSS - University of...
Transcript of Introduction to the SPSS - University of...
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
Petra Petrovics
Introduction to the SPSS
1st seminar
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
SPSS (Statistical Package for the Social Sciences )
• computer program used for statistical analysis
• 2 files: XY.sav - Data View
XY.spo - Output
Just with upper case!!!
It can be a
longer name
Short name; don’t use space!!
Number of the
characters in the
Data View
Width of a column
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
Scales of measurement
from weakest to strongest
- nominal scale
- ordinal scale
- interval scale
- ratio scale
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
1. Nominal scale
• Numbers are labels of groups or classes• Simple codes assigned to objects as labels• For qualitative data, e.g. professional
classification, geographic classification• e.g. - blonde: 1, brown: 2, red: 3, black: 4
(a person with red hair does not possess more"hairness" than a person with blonde hair)
- female: 1, male: 2
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
2. Ordinal scale
• Data elements may be ordered according totheir relative size or quality, the numbersassigned to objects or events represent the rankorder (1st, 2nd, 3rd etc.)
• e.g. top lists of companies
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
3. Interval scale
• Meaning of distances between any two observations
• The "zero point" is arbitrary
• Negative values can be used
• Ratios between numbers on the scale are not meaningful,so operations such as multiplication and division cannotbe carried out directly
• e.g. temperature with the Celsius scale
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
4. Ratio scale
• Strongest scale of measurement
• Distances between observations and also theratios of distances have a meaning
• Contains a meaningful zero
• e.g. mass, length, time
a salary of $50,000 is twice as large as asalary of $25,000
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
Exercise 1
Age Place of residence
School year Grade(Statistics)
T.E. 24 Miskolc 3 3
B.N. 32 Miskolc 2 4
H.L. 22 Felsőzsolca 3 2
K.O. 35 Miskolc 3 4
V.I. 27 Mályi 2 5
Source: XY
Students at the University of Miskolc
Create a data set!
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
Exercise 2
Source: XY
2000 2004 2005
University student 47498 66309 70153
College student 54889 88384 109412
Number of the teachers 17302 19103 18098
Number of institutions 77 91 90
Number of students in the % of the 18-22-year-old population
10,4 13,9 15
Create a data set!
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
The 18-22-year-old population = ?
population old-year-22-18
studentspopulation old-year-22-18 theof % in the students ofNumber
18-22-year-old population =(University student + Collegestudent) * (100/Number ofstudents in the % of the 18-22-year-old population)
SPSS:
Transform / Compute
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
Exercise 3 - Graphs‘Employee data.sav’
1. Define simple boxplot of the current salary categorized bythe employment category clustered by gender! Embellishthe graph!
Create a…
2. column diagram
3. column diagram stacked by gender
4. pie chart
of the employees grouped by the employment category!(in %) Embellish the graph!
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
1. 2.
3.
4.
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5. Create a scatterplot of current salary and beginning salary if you setmarkers by gender!
Graphs / Scatter/Dot… / SimpleData Label Mode
• Faculty of Economics• Gazdaságelméleti és Módszertani Intézet
Thanks for your [email protected]