Providing a "Don't know" or "Not applicable" response allows respondents to opt-in.

True

False

Which of the following is TRUE?

The recording of a respondent's social class using the categories upper, middle, and lower represents the use of a nominal scale

An ordinal scale can be transformed in any manner possible, provided that the basic ordering of the objects is maintained

When the scale has an arbitrary zero point, it makes sense to say that A is twice as much as B.

Interval scales possess an absolute zero point whereas ordinal scales do not.

All the statements are false

The advantages of stratified over simple random sampling include stratified sampling

a.

ensures adequate representation from each stratum of interest

b.

can produce more precise sample statistics

c.

allows for the comparison of variables between strata

d.

Both b and c

e.

All of the above