References.
•Berhman, H.B. (2022, august 14th). Stat Trek. AP statistics. https://stattrek.com/descriptive-statistics/variables
•Christensen, H. (1990). Estadística paso a paso, 221-222.
•COMMON MISTEAKS MISTAKES IN USING STATISTICS: Spotting and Avoiding Them. (2022, august 14th). https://web.ma.utexas.edu/users/mks/statmistakes/ordinal.html
•Frost, J. (2022, august 14th). Statistics By Jim.
https://statisticsbyjim.com/basics/what-is-a-variable/
•GCFGlobal. (2022, august 14th). Estadística básica: Variables estadísticas. Variables estadísticas. https://edu.gcfglobal.org/es/estadistica-basica/variables-estadisticas/1/
•Springer Link. (2022, august 14th). Dichotomous Variable. The Concise Encyclopedia of Statistics. https://link.springer.com/referenceworkentry/10.1007/978-0-387-32833-1_112#:~:text=A%20variable%20is%20called%20dichotomous,always%20be%20reduced%20and%20dichotomized.
•Statistics How To. (2022, august 14th). What is a Polychotomous Variable?. https://www.statisticshowto.com/polychotomous-variable/
•SearchCIO. (2022, august 14th). qualitative data. https://www.techtarget.com/searchcio/definition/qualitative-data#:~:text=Qualitative%20data%20is%20information%20that,graph%20databases%2C%20timelines%20and%20infographics.
•Mate móvil. (2022, august 14th). Matemáticas física y mucho más. Variables estadísticas, ejemplos y ejercicios. https://matemovil.com/variables-estadisticas-ejemplos-y-ejercicios/
•UCLA. (2022, august 14th). What is the difference between categorical, ordinal and interval variables?. Statistica Methods and Data Analytics https://stats.oarc.ucla.edu/other/mult-pkg/whatstat/what-is-the-difference-between-categorical-ordinal-and-interval-variables/
•YouTube. (2022, august 14th). Qualitative and Quantitative Research. https://www.youtube.com/watch?v=69qP8kFJp_k
Finally, you can find an interactive way, showing the differences between Qualitative and Quantitative variables.
Statistics Variables.
a set of characteristics that you can measure record or analyze it.
Qualitative.
That cannot be counted,
measured or express it
with numbers.
Text, audio, pictures or
visualization tools, such as
concept maps, graph datbases, etc..
Categorical or
Nominal.
Two or more categories
without a clear ordering.
Hair Color:
(Blonde, brown, red, etc).
Two or more variables
but it has a clear ordering
Considered in between the
definition of categorical and
Quantitative variable.
It fits in Qualitative concept
Economic Status.
Three categories:
-Low.
-Medium.
-High.
Polychotomous.
Two or more values and
can be ordered, unordered or
sequential.
Sequential: College matriculation
1. Sophomore, 2. Freshman, 3. Junior
or 4. Senior.
Unordered: 1. for lemons,
2. For cherries or 3. for apples.
Ordered: 1. if your earn
2,500,000. 2. If you earn
1,500,000. Or 3. If you
earn less than 1,000,000.
Dichotomous
or Binary.
Only takes two
variables.
Gender only has two
values: Female and Male.
Quantitative.
Describes information that can be measured or expressed it with numbers.
Continuous
Subtopic
Discrete.
Only takes specific values, in other words, you cannot subdivided.
Number of students in
a classroom.
You cannot say, you walked 2,5 steps or there are 25,1 Students.
Number of steps you
wal per day.
