If Subjects Participating in a Two-Group Pretest-Posttest Design Research Study

question 42

Multiple Choice

If subjects participating in a two-group pretest-posttest design research study about bipolar disorder are given a knowledge test about the disorder being studied multiple times, what is the potential disadvantage?

• A) The selection bias of only choosing subjects that take the test.
• B) There will be an apparent lack of differences between the results
• C) A threat to validity and mortality from repeated subject testing.
• D) The longer time needed for testing requires a larger sample size.

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Definitions:

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Receiving Report

A document that records the details of goods received by a company, often used to verify shipments with purchase orders.

Materials Ledger

A detailed record keeping system that tracks the quantity and cost of materials on hand, received, and issued for production.

Service Organization

A business entity that primarily offers intangible products or services rather than physical goods.