If a respondent says his income is over $100,000 per annum when, in fact, it is $50,000 per annum, the difference between the true and actual measurement of income in this case could be said to LACK:
A) reliability.
B) validity.
C) both a and b
D) neither a nor b.
E) nominal scale.

Question

Quizplus · Accepted Answer

The discrepancy between the respondent's reported income and their actual income suggests a lack of validity. Validity refers to the extent to which a measurement tool accurately measures what it is supposed to measure, in this case, income. Reliability would be an issue if the respondent gave different answers to the income question on different occasions or if different interviewers obtained conflicting income data with the same respondent. However, there is no indication that this is the case. Therefore, options A and C are incorrect. Option D is also incorrect because an incorrect answer to the income question does not relate to the level of measurement on a nominal scale, which is used for categorical data with no numerical value.

If a Respondent Says His Income Is Over $100,000 Per