In a Meta-Analysis

question 45

Multiple Choice

In a meta-analysis:

• A) previous studies are summarized to draw conclusions about the state of knowledge in a research field
• B) the experimenter manipulates some variables, but is not able to manipulate other important variables
• C) random assignment is used to control extraneous influences
• D) the researcher is unable to clearly demonstrate a cause and effect relationship between variables

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Definitions:

Farsighted

A vision condition, also known as hyperopia, where distant objects are seen more clearly than near objects.

Eyeball

The organ of sight in humans and animals, allowing for vision through the process of light detection.

Rods

Photoreceptor cells in the retina of the eye that function in low light and are responsible for black-and-white vision.

Fovea

A minimal dip in the eye's retina where the clarity of vision is at its peak because it contains a large number of cones.