Which of the following is true about indexes and scales?

a. They are nominal measures of variables.

b. They rank-order the units of analysis in terms of specific variables.

c. Their attributes form an intensity structure.

d. They are ordinal measures of variables They are interval measures.

Answer: The following statement is true about indexes and scales: They rank-order the units of analysis in terms of specific variables.

Indexes provides with a way to make a complex measure that iterate consequence for multiple rank-ordered related questions or statements.

Scale is a type of complex measurement that is combined of several items that have a empirical structure among them.