30 Examples of Qualitative Variables

The qualitative variables are those variables that state the attributes, conditions or qualities of a phenomenon and that are expressed in words (never in numbers). For example: The most used means of transport in a city (since the alternatives are expressed in words: car, bus, subway, train, etc.).

Variables are the characteristics of a population that are studied and analyzed in a statistical investigation to obtain information about a set of elements.

All types of variables acquire values, which serve to record the fluctuation of the observed characteristic, because they show how a property changes from one element of the population to another. other.

Qualitative variables differ from other types of variables, quantitative ones, because the former express attributes and, therefore, adopt non-numerical values. For example: If the variable is the color of the cars, its values ​​are red, black, blue, gray, etc.

In contrast, quantitative variables express quantities and are therefore assigned numerical values. For example:

Characteristics of qualitative variables

Types of qualitative variables

There are two types of qualitative variables:

Examples of nominal polytomous qualitative variables

1. The most visited tourist sites, whose values ​​can be the classical art museum, the central square, a monument, etc.
2. The most purchased car types, whose values ​​can be electric car, solar car, gas car, hybrid car, etc.
3. types of bike, whose values ​​are road bike, city bike, mountain bike, etc.
4. property types, whose values ​​are apartment, house, shed, land, factory, etc.
5. product types, whose values ​​can be industrial, artisanal, natural, etc.
6. The sector to which a country's goods and services belong, whose values ​​are primary sector, secondary sector, tertiary sector, quaternary sector and quinary sector.
7. The types of texts that are in bookstores, whose values ​​are poetry, narrative, history, self-help, etc.
8. The types of phones that are most consumed, whose values ​​are landline, cell phone, satellite phone, etc.
9. The classification of animals according to their diet, whose values ​​are herbivore, omnivore, and carnivore.
10. The most chosen film genres, whose values ​​are comedy, science fiction, adventure, realism, documentary, etc.

Examples of ordinal polytomous qualitative variables

1. The quality of a product, whose values ​​are very bad, bad, regular, good, very good or excellent.
2. Hierarchical positions in schools, whose values ​​are professor, director of studies, vice-director, director and regent.
3. The range of cars, whose values ​​are low range, mid range and high range.
4. court charges, whose values ​​are President of the Supreme Court of Justice of the State, Private Secretary of the Presidency, Director of the Judicial Archive, among others.
5. The quality of a service according to the opinion of consumers, whose values ​​can be poor, fair, good and excellent.
6. The type of company, whose values ​​can be small, medium and large.
7. The prizes of a competition, whose values ​​can be first prize, second prize and third prize.
8. The years in which the students of a career are, whose values ​​are first year, second year, third year, fourth year, and fifth year.
9. The rating of a movie, whose values ​​are poor, fair, good and excellent.
10. How often people do clinical trials, whose values ​​are every year, every two years, every three years, etc.

Examples of dichotomous qualitative variables

1. types of buildings, whose values ​​are old and new.
2. health status, whose values ​​are healthy and sick.
3. The result of a disease test, whose values ​​are detectable and undetectable.
4. The condition of the students regarding an exam, whose values ​​are pass and fail.
5. The status of a request, whose values ​​are approved and disapproved.
6. The question of a survey in which it is consulted if people traveled to another country and whose values ​​are yes and no.
7. The question of a survey in which people are consulted if they read the newspaper and whose values ​​are yes and no.
8. The question of a survey in which people are consulted if they buy organic food and whose values ​​are yes and no.
9. The question of a survey in which people are consulted if they have a car and whose values ​​are yes and no.
10. The question of a survey in which people are consulted if they use public transport and whose values ​​are yes and no.

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