When Measures of Central Tendency and Dispersion Are Presented in the Literature

question 22

Multiple Choice

When measures of central tendency and dispersion are presented in the literature, the number of cases may vary from variable to variable. This is because________.

• A) the researchers only used a subset of their sample for convenience purposes.
• B) cases were missing values for that variable.
• C) the variable in those cases was measured at a different level.
• D) none of these choices are correct.

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Definitions:

Trichromatic Color Theory

A theory stating that the human eye perceives color through the relative rates of response by three types of cones, each sensitive to different wavelengths of light (red, green, and blue).

Trichromatic Color

A theory of color vision based on the existence of three types of cone cells in the eye, each sensitive to red, green, or blue light.

Complex Cortical Cell

A type of neuron in the cerebral cortex that responds to visual stimuli with certain characteristics, such as orientation, movement, and length.

Temporal Cortex

A region of the cerebral cortex involved in processing auditory information and is critical in understanding language and storing new memories.