Suppose That Ten New Smart Phone Models Were Evaluated by Two

question 8

Multiple Choice

Suppose that ten new smart phone models were evaluated by two consumer electronics magazines (Popular Electronics and Electronics Now) from 1 (best) to 10 (worst) as shown below. Why is the Spearman's rho more appropriate than the correlation coefficient for these data?

• A) The relationship is nonlinear.
• B) The data are ordinal.
• C) The data are not paired.
• D) There is one extreme outlier.
• E) Both outliers and bends in the data make the correlation coefficient difficult to interpret.

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Definitions:

Conditioned Stimulus

A stimulus that was once neutral but, after being paired with the unconditioned stimulus, gradually induces a conditioned response.

Aplysia

A genus of sea slugs that are often used in neurological research due to their simple, large nerve cells.

Squirt

To eject liquid in a thin, fast stream through a narrow opening.

Classical Conditioning

A learning paradigm where two stimuli are unceasingly linked; initially, the response is triggered by the second stimulus, but with time, it is triggered by the first stimulus alone.