A Researcher Reports an F-Ratio with Df = 2,18 from an Independent-Measures

question 71

Multiple Choice

A researcher reports an F-ratio with df = 2,18 from an independent-measures research study.Based on the df values,how many treatments were compared in the study and what was the total number of subjects participating in the study?​

• A)​2 treatments and 19 subjects
• B)​2 treatments and 20 subjects
• C)​3 treatments and 21 subjects
• D)​3 treatments and 22 subjects

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Definitions:

Presbyopia

A natural condition related to aging in which the eye's lens becomes less flexible, making it difficult to focus on close objects.

Nearsightedness

A common vision condition where objects nearby are seen clearly, but distant objects appear blurred, also known as myopia.

Glaucoma

Irreversible damage to the optic nerve caused by increased pressure in the eye.

Myopia

Nearsightedness.