Continuous: interval of possible values, like income, temperature
in SPSS scale variable
Discrete: series of isolated values
= Quantitative
Binary variable - k=2 categories
Ordinal - ordered categories
QDA😒 1
, Nominal - unordered categories
= Qualitative
variables can always be treated as a variable of a lower type
but in survey always use the highest one
Likert variables - measure judgement
is ordinal, but treated as quantitative
SPSS
For qualitative data(categorical) we use:
frequency table
bar chart
pie chart
mode
median - only for ordinal
For quantitative data
Accounting
Operations
HR
Marketing
We use:
Histogram - provides information about the distribution of the values
1. Location - central value = mean
2. Spread - variability=dispersion
3. Skewness - lack of symmetry
QDA😒 2
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