0398D Escalas de medición: variables cualitativas

Introduction to Qualitative Variables

In this section, the classification of variables into qualitative and quantitative types is discussed. The focus is on providing a secondary classification for each type, starting with qualitative variables.

Types of Qualitative Variables

• Nominal Variables -

• Values represent categories without inherent order.

• Measured using a nominal scale.

• Example: Gender (male/female), Religion (Buddhism, Christianity).

• Ordinal Variables -

• Values have a natural order.

• Measured using an ordinal scale.

• Example: Product quality (bad/regular/good), Language proficiency level (basic/intermediate/advanced).

Ordinal vs. Nominal Variables

This part delves deeper into the distinction between ordinal and nominal variables, emphasizing the significance of natural order in ordinal variables.

Ordinal and Nominal Variable Measurement

• Measurement Scales -

• Ordinal variables can be considered as nominal when order is irrelevant or ignored.

• It's challenging to establish an order in nominal variable values to transform them into ordinal variables.