DISCRETE VARIABLE IN A RESEARCH

 DISCRETE VARIABLE IN A RESEARCH

Discrete variables are numeric variables that have a countable number of values between any two values. A discrete variable is always numeric. It is a variable whose value is obtained by counting, e.g. number of students present.

Characteristics of discrete variable

·        Discrete variable is a type of statistical variable.

·        It can assume only fixed number of distinct values and lacks an inherent order.

·        It is also known as categorical variables, because it has separate invisible categories

·        It is not continuous.

·        Discrete variables are limited number of values which cannot be divided in to fractions.

Types of discrete variables

1.      Nominal variables

·        Named variables

·        A scale that categorizes items

·        No ordering, no direction

·        E.g.- marital status

2.      Ordinal variables

·        Named variables + ordered variables

·        Rankings, ordered or scaling

·        E.g. student letter grade

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