How Does Restricting the Range of a Variable Affect the Correlation

question 42

Multiple Choice

How does restricting the range of a variable affect the correlation coefficient?

• A)It improves the correlation coefficient.
• B)It reduces the magnitude of the correlation coefficient.
• C)It has no effect on the correlation coefficient.
• D)It changes the direction of the correlation coefficient.

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Definitions:

Neuron Labeled

A neuron that has been marked or tagged for study, typically to trace connections or identify specific types of neurons.

Vertebrate Embryo

An early stage in the development of animals with backbones, where the fundamental structures that define the vertebrate form are established.

Neural Tube

The hollow, longitudinal structure in the early vertebrate embryo that gives rise to the brain and spinal cord. The neural tube forms from the neural plate, a flattened, thickened region of the ectoderm that rolls up and sinks below the surface.

Neural Plate

The flat layer of embryonic ectodermal cells that develops into the nervous system, including the brain and spinal cord.