Exam 8: Measurement in Quantitative and Qualitative Inquiry

Predictive validity is one form of criterion-related validity.

Most social scientists would not accept the conceptualization of IQ as foot size because such a measurement would lack

Coefficient alpha measures internal consistency reliability.

A measure has discriminant validity when:

The tendency to give a favorable impression of oneself reduces the reliability of a measure.

If an instrument has both convergent and discriminant validity,it then has:

Professor Myth asked respondents whether or not they had ever been divorced.One year later Professor Myth asked respondents the same question.Myth found that with repeated applications of the measure different responses were obtained for the same subject.This means that the measuring instrument was

Some child-welfare workers observe children playing with anatomically correct dolls to help them assess whether those children have been sexually abused.If a child simulates sexual acts with the dolls,it is viewed as evidence that the child may be a victim of sexual abuse.What are some sources of systematic and random measurement error in this approach to assessment? How could the reliability and validity of this assessment procedure be gauged?

The weakest form of validity is:

If a measure has face validity,we can be quite confident that it really measures what it intends to measure.

An interview with someone with a limited vocabulary who therefore does not understand the questions being asked is likely to produce