Which Statement Is a Research Purpose for a Correlational Study

question 24

Multiple Choice

Which statement is a research purpose for a correlational study?

• A) "This study will compare the effects of an oral antidiabetic medication to effects of a placebo on glucose control in groups of randomly assigned subjects."
• B) "This study will examine whether pre-appointment telephone reminders increase show rate among patients in an ambulatory well-patient clinic."
• C) "This study will use direct observation to identify methods parents use to discipline children in public places."
• D) "This study will use questionnaires and school transcripts to examine the relationship of dietary habits to grades among school-age children."

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Definitions:

Prosthesis

An artificial device used to replace a missing body part, such as a limb, tooth, or heart valve.

Inner Ear

The innermost part of the ear, containing the cochlea, vestibule, and semicircular canals, responsible for hearing and balance.

Tympanic Membrane

A thin membrane that separates the external ear from the middle ear and vibrates in response to sound waves; commonly known as the eardrum.

Oval Window

A membrane-covered opening that leads from the middle ear to the cochlea of the inner ear, transferring vibrations to fluid within the cochlea.