A University Conducts a Series of Surveys in Which Subjects

question 6

Multiple Choice

A university conducts a series of surveys in which subjects are drawn from first year and graduating students and finds that graduating students demonstrate much higher rates of approval for the university (in terms of whether they think the classes were relevant,the instructors were competent,etc.) .The university then claims that more experience with the university leads to higher approval.What source of internal invalidity has the university not considered?

• A)selection bias
• B)mortality
• C)noncomparable groups
• D)regression

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Definitions:

Validity

in research refers to the extent to which a tool, test, or study accurately measures what it is intended to measure.

Invalid Statement

A declaration or assertion that is not logically or factually sound.

Syllogism

A form of reasoning in which a conclusion is drawn from two given or assumed propositions (premises); a common form of logical deduction.

Participants

Individuals who take part in something, especially in an experiment or study.